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<p class='location'>Struct NaiveDate</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.from_ymd">from_ymd</a><a href="#method.from_ymd_opt">from_ymd_opt</a><a href="#method.from_yo">from_yo</a><a href="#method.from_yo_opt">from_yo_opt</a><a href="#method.from_isoywd">from_isoywd</a><a href="#method.from_isoywd_opt">from_isoywd_opt</a><a href="#method.from_num_days_from_ce">from_num_days_from_ce</a><a href="#method.from_num_days_from_ce_opt">from_num_days_from_ce_opt</a><a href="#method.parse_from_str">parse_from_str</a><a href="#method.and_time">and_time</a><a href="#method.and_hms">and_hms</a><a href="#method.and_hms_opt">and_hms_opt</a><a href="#method.and_hms_milli">and_hms_milli</a><a href="#method.and_hms_milli_opt">and_hms_milli_opt</a><a href="#method.and_hms_micro">and_hms_micro</a><a href="#method.and_hms_micro_opt">and_hms_micro_opt</a><a href="#method.and_hms_nano">and_hms_nano</a><a href="#method.and_hms_nano_opt">and_hms_nano_opt</a><a href="#method.succ">succ</a><a href="#method.succ_opt">succ_opt</a><a href="#method.pred">pred</a><a href="#method.pred_opt">pred_opt</a><a href="#method.checked_add_signed">checked_add_signed</a><a href="#method.checked_sub_signed">checked_sub_signed</a><a href="#method.signed_duration_since">signed_duration_since</a><a href="#method.format_with_items">format_with_items</a><a href="#method.format">format</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Serialize">Serialize</a><a href="#impl-Deserialize%3C%27de%3E">Deserialize<'de></a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Eq">Eq</a><a href="#impl-Hash">Hash</a><a href="#impl-PartialOrd">PartialOrd</a><a href="#impl-Ord">Ord</a><a href="#impl-Copy">Copy</a><a href="#impl-Clone">Clone</a><a href="#impl-Datelike">Datelike</a><a href="#impl-Add%3COldDuration%3E">Add<OldDuration></a><a href="#impl-AddAssign%3COldDuration%3E">AddAssign<OldDuration></a><a href="#impl-Sub%3COldDuration%3E">Sub<OldDuration></a><a href="#impl-SubAssign%3COldDuration%3E">SubAssign<OldDuration></a><a href="#impl-Sub%3CNaiveDate%3E">Sub<NaiveDate></a><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-FromStr">FromStr</a></div></div><p class='location'><a href='../index.html'>chrono</a>::<wbr><a href='index.html'>naive</a></p><script>window.sidebarCurrent = {name: 'NaiveDate', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>chrono</a>::<wbr><a href='index.html'>naive</a>::<wbr><a class="struct" href=''>NaiveDate</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../../src/chrono/naive/date.rs.html#97-99' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct NaiveDate { /* fields omitted */ }</pre><div class='docblock'><p>ISO 8601 calendar date without timezone.
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Allows for every <a href="#calendar-date">proleptic Gregorian date</a>
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from Jan 1, 262145 BCE to Dec 31, 262143 CE.
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Also supports the conversion from ISO 8601 ordinal and week date.</p>
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<h1 id="calendar-date" class="section-header"><a href="#calendar-date">Calendar Date</a></h1>
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<p>The ISO 8601 <strong>calendar date</strong> follows the proleptic Gregorian calendar.
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It is like a normal civil calendar but note some slight differences:</p>
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<ul>
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<li>
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<p>Dates before the Gregorian calendar's inception in 1582 are defined via the extrapolation.
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Be careful, as historical dates are often noted in the Julian calendar and others
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and the transition to Gregorian may differ across countries (as late as early 20C).</p>
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<p>(Some example: Both Shakespeare from Britain and Cervantes from Spain seemingly died
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on the same calendar date---April 23, 1616---but in the different calendar.
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Britain used the Julian calendar at that time, so Shakespeare's death is later.)</p>
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</li>
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<li>
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<p>ISO 8601 calendars has the year 0, which is 1 BCE (a year before 1 CE).
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If you need a typical BCE/BC and CE/AD notation for year numbers,
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use the <a href="../trait.Datelike.html#method.year_ce"><code>Datelike::year_ce</code></a> method.</p>
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</li>
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</ul>
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<h1 id="week-date" class="section-header"><a href="#week-date">Week Date</a></h1>
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<p>The ISO 8601 <strong>week date</strong> is a triple of year number, week number
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and <a href="../enum.Weekday.html">day of the week</a> with the following rules:</p>
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<ul>
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<li>
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<p>A week consists of Monday through Sunday, and is always numbered within some year.
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The week number ranges from 1 to 52 or 53 depending on the year.</p>
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</li>
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<li>
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<p>The week 1 of given year is defined as the first week containing January 4 of that year,
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or equivalently, the first week containing four or more days in that year.</p>
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</li>
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<li>
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<p>The year number in the week date may <em>not</em> correspond to the actual Gregorian year.
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For example, January 3, 2016 (Sunday) was on the last (53rd) week of 2015.</p>
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</li>
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</ul>
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<p>Chrono's date types default to the ISO 8601 <a href="#calendar-date">calendar date</a>,
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but <a href="../trait.Datelike.html#tymethod.iso_week"><code>Datelike::iso_week</code></a> and
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<a href="../trait.Datelike.html#tymethod.weekday"><code>Datelike::weekday</code></a> methods
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can be used to get the corresponding week date.</p>
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<h1 id="ordinal-date" class="section-header"><a href="#ordinal-date">Ordinal Date</a></h1>
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<p>The ISO 8601 <strong>ordinal date</strong> is a pair of year number and day of the year ("ordinal").
|
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The ordinal number ranges from 1 to 365 or 366 depending on the year.
|
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The year number is same to that of the <a href="#calendar-date">calendar date</a>.</p>
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<p>This is currently the internal format of Chrono's date types.</p>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#125-961' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.from_ymd' class="method"><span id='from_ymd.v' class='invisible'><code>pub fn <a href='#method.from_ymd' class='fnname'>from_ymd</a>(year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, month: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, day: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#161-163' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#calendar-date">calendar date</a>
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(year, month and day).</p>
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<p>Panics on the out-of-range date, invalid month and/or day.</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
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<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">14</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">month</span>(), <span class="number">3</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">day</span>(), <span class="number">14</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">ordinal</span>(), <span class="number">73</span>); <span class="comment">// day of year</span>
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">year</span>(), <span class="number">2015</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">week</span>(), <span class="number">11</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Sat</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">num_days_from_ce</span>(), <span class="number">735671</span>); <span class="comment">// days since January 1, 1 CE</span></pre>
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</div><h4 id='method.from_ymd_opt' class="method"><span id='from_ymd_opt.v' class='invisible'><code>pub fn <a href='#method.from_ymd_opt' class='fnname'>from_ymd_opt</a>(year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, month: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, day: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#184-187' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#calendar-date">calendar date</a>
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(year, month and day).</p>
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<p>Returns <code>None</code> on the out-of-range date, invalid month and/or day.</p>
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<h1 id="example-1" class="section-header"><a href="#example-1">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
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<span class="kw">let</span> <span class="ident">from_ymd_opt</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd_opt</span>;
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">is_some</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="number">2015</span>, <span class="number">0</span>, <span class="number">14</span>).<span class="ident">is_none</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="number">2015</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">is_none</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="op">-</span><span class="number">4</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">is_some</span>()); <span class="comment">// 5 BCE is a leap year</span>
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="number">400000</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">is_none</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_ymd_opt</span>(<span class="op">-</span><span class="number">400000</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">is_none</span>());</pre>
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</div><h4 id='method.from_yo' class="method"><span id='from_yo.v' class='invisible'><code>pub fn <a href='#method.from_yo' class='fnname'>from_yo</a>(year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, ordinal: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#209-211' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#ordinal-date">ordinal date</a>
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(year and day of the year).</p>
|
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<p>Panics on the out-of-range date and/or invalid day of year.</p>
|
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<h1 id="example-2" class="section-header"><a href="#example-2">Example</a></h1>
|
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<pre class="rust rust-example-rendered">
|
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<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
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<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_yo</span>(<span class="number">2015</span>, <span class="number">73</span>);
|
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">ordinal</span>(), <span class="number">73</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">month</span>(), <span class="number">3</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">day</span>(), <span class="number">14</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">year</span>(), <span class="number">2015</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">week</span>(), <span class="number">11</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Sat</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">num_days_from_ce</span>(), <span class="number">735671</span>); <span class="comment">// days since January 1, 1 CE</span></pre>
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|
|
</div><h4 id='method.from_yo_opt' class="method"><span id='from_yo_opt.v' class='invisible'><code>pub fn <a href='#method.from_yo_opt' class='fnname'>from_yo_opt</a>(year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, ordinal: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#233-236' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#ordinal-date">ordinal date</a>
|
|||
|
|
(year and day of the year).</p>
|
|||
|
|
<p>Returns <code>None</code> on the out-of-range date and/or invalid day of year.</p>
|
|||
|
|
<h1 id="example-3" class="section-header"><a href="#example-3">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_yo_opt</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_yo_opt</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="number">2015</span>, <span class="number">100</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="number">2015</span>, <span class="number">0</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="number">2015</span>, <span class="number">365</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="number">2015</span>, <span class="number">366</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="op">-</span><span class="number">4</span>, <span class="number">366</span>).<span class="ident">is_some</span>()); <span class="comment">// 5 BCE is a leap year</span>
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="number">400000</span>, <span class="number">1</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">from_yo_opt</span>(<span class="op">-</span><span class="number">400000</span>, <span class="number">1</span>).<span class="ident">is_none</span>());</pre>
|
|||
|
|
</div><h4 id='method.from_isoywd' class="method"><span id='from_isoywd.v' class='invisible'><code>pub fn <a href='#method.from_isoywd' class='fnname'>from_isoywd</a>(year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, week: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, weekday: <a class="enum" href="../../chrono/enum.Weekday.html" title="enum chrono::Weekday">Weekday</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#259-261' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#week-date">ISO week date</a>
|
|||
|
|
(year, week number and day of the week).
|
|||
|
|
The resulting <code>NaiveDate</code> may have a different year from the input year.</p>
|
|||
|
|
<p>Panics on the out-of-range date and/or invalid week number.</p>
|
|||
|
|
<h1 id="example-4" class="section-header"><a href="#example-4">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_isoywd</span>(<span class="number">2015</span>, <span class="number">11</span>, <span class="ident">Weekday</span>::<span class="ident">Sat</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">week</span>(), <span class="number">11</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Sat</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">month</span>(), <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">day</span>(), <span class="number">14</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">ordinal</span>(), <span class="number">73</span>); <span class="comment">// day of year</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">num_days_from_ce</span>(), <span class="number">735671</span>); <span class="comment">// days since January 1, 1 CE</span></pre>
|
|||
|
|
</div><h4 id='method.from_isoywd_opt' class="method"><span id='from_isoywd_opt.v' class='invisible'><code>pub fn <a href='#method.from_isoywd_opt' class='fnname'>from_isoywd_opt</a>(<br> year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, <br> week: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> weekday: <a class="enum" href="../../chrono/enum.Weekday.html" title="enum chrono::Weekday">Weekday</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#307-331' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the <a href="#week-date">ISO week date</a>
|
|||
|
|
(year, week number and day of the week).
|
|||
|
|
The resulting <code>NaiveDate</code> may have a different year from the input year.</p>
|
|||
|
|
<p>Returns <code>None</code> on the out-of-range date and/or invalid week number.</p>
|
|||
|
|
<h1 id="example-5" class="section-header"><a href="#example-5">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_isoywd_opt</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_isoywd_opt</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">0</span>, <span class="ident">Weekday</span>::<span class="ident">Sun</span>), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="ident">Weekday</span>::<span class="ident">Sun</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">8</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">30</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">7</span>, <span class="number">20</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">60</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">None</span>);
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">400000</span>, <span class="number">10</span>, <span class="ident">Weekday</span>::<span class="ident">Fri</span>), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="op">-</span><span class="number">400000</span>, <span class="number">10</span>, <span class="ident">Weekday</span>::<span class="ident">Sat</span>), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
<p>The year number of ISO week date may differ from that of the calendar date.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="comment">// Mo Tu We Th Fr Sa Su</span>
|
|||
|
|
<span class="comment">// 2014-W52 22 23 24 25 26 27 28 has 4+ days of new year,</span>
|
|||
|
|
<span class="comment">// 2015-W01 29 30 31 1 2 3 4 <- so this is the first week</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2014</span>, <span class="number">52</span>, <span class="ident">Weekday</span>::<span class="ident">Sun</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">12</span>, <span class="number">28</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2014</span>, <span class="number">53</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">12</span>, <span class="number">29</span>)));
|
|||
|
|
|
|||
|
|
<span class="comment">// 2015-W52 21 22 23 24 25 26 27 has 4+ days of old year,</span>
|
|||
|
|
<span class="comment">// 2015-W53 28 29 30 31 1 2 3 <- so this is the last week</span>
|
|||
|
|
<span class="comment">// 2016-W01 4 5 6 7 8 9 10</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">52</span>, <span class="ident">Weekday</span>::<span class="ident">Sun</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">12</span>, <span class="number">27</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">53</span>, <span class="ident">Weekday</span>::<span class="ident">Sun</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">3</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2015</span>, <span class="number">54</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_isoywd_opt</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="ident">Weekday</span>::<span class="ident">Mon</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">4</span>)));</pre>
|
|||
|
|
</div><h4 id='method.from_num_days_from_ce' class="method"><span id='from_num_days_from_ce.v' class='invisible'><code>pub fn <a href='#method.from_num_days_from_ce' class='fnname'>from_num_days_from_ce</a>(days: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#377-379' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the number of days since January 1, 1 (Day 1)
|
|||
|
|
in the proleptic Gregorian calendar.</p>
|
|||
|
|
<p>Panics on the out-of-range date.</p>
|
|||
|
|
<h1 id="example-6" class="section-header"><a href="#example-6">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_num_days_from_ce</span>(<span class="number">735671</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">num_days_from_ce</span>(), <span class="number">735671</span>); <span class="comment">// days since January 1, 1 CE</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">month</span>(), <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">day</span>(), <span class="number">14</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">ordinal</span>(), <span class="number">73</span>); <span class="comment">// day of year</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">iso_week</span>().<span class="ident">week</span>(), <span class="number">11</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Sat</span>);</pre>
|
|||
|
|
<p>While not directly supported by Chrono,
|
|||
|
|
it is easy to convert from the Julian day number
|
|||
|
|
(January 1, 4713 BCE in the <em>Julian</em> calendar being Day 0)
|
|||
|
|
to Gregorian with this method.
|
|||
|
|
(Note that this panics when <code>jd</code> is out of range.)</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">jd_to_date</span>(<span class="ident">jd</span>: <span class="ident">i32</span>) <span class="op">-></span> <span class="ident">NaiveDate</span> {
|
|||
|
|
<span class="comment">// keep in mind that the Julian day number is 0-based</span>
|
|||
|
|
<span class="comment">// while this method requires an 1-based number.</span>
|
|||
|
|
<span class="ident">NaiveDate</span>::<span class="ident">from_num_days_from_ce</span>(<span class="ident">jd</span> <span class="op">-</span> <span class="number">1721425</span>)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="comment">// January 1, 4713 BCE in Julian = November 24, 4714 BCE in Gregorian</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">jd_to_date</span>(<span class="number">0</span>), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">4713</span>, <span class="number">11</span>, <span class="number">24</span>));
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">jd_to_date</span>(<span class="number">1721426</span>), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">jd_to_date</span>(<span class="number">2450000</span>), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">1995</span>, <span class="number">10</span>, <span class="number">9</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">jd_to_date</span>(<span class="number">2451545</span>), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2000</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
|
|||
|
|
</div><h4 id='method.from_num_days_from_ce_opt' class="method"><span id='from_num_days_from_ce_opt.v' class='invisible'><code>pub fn <a href='#method.from_num_days_from_ce_opt' class='fnname'>from_num_days_from_ce_opt</a>(days: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#401-408' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> from the number of days since January 1, 1 (Day 1)
|
|||
|
|
in the proleptic Gregorian calendar.</p>
|
|||
|
|
<p>Returns <code>None</code> on the out-of-range date.</p>
|
|||
|
|
<h1 id="example-7" class="section-header"><a href="#example-7">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ndays_opt</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_num_days_from_ce_opt</span>;
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="number">730_000</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">1999</span>, <span class="number">9</span>, <span class="number">3</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">0</span>, <span class="number">12</span>, <span class="number">31</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="op">-</span><span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="ident">from_ymd</span>(<span class="number">0</span>, <span class="number">12</span>, <span class="number">30</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="number">100_000_000</span>), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ndays_opt</span>(<span class="op">-</span><span class="number">100_000_000</span>), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
</div><h4 id='method.parse_from_str' class="method"><span id='parse_from_str.v' class='invisible'><code>pub fn <a href='#method.parse_from_str' class='fnname'>parse_from_str</a>(s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, fmt: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../chrono/format/type.ParseResult.html" title="type chrono::format::ParseResult">ParseResult</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#452-456' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Parses a string with the specified format string and returns a new <code>NaiveDate</code>.
|
|||
|
|
See the <a href="../format/strftime/index.html"><code>format::strftime</code> module</a>
|
|||
|
|
on the supported escape sequences.</p>
|
|||
|
|
<h1 id="example-8" class="section-header"><a href="#example-8">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">parse_from_str</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">parse_from_str</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"2015-09-05"</span>, <span class="string">"%Y-%m-%d"</span>),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"5sep2015"</span>, <span class="string">"%d%b%Y"</span>),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>)));</pre>
|
|||
|
|
<p>Time and offset is ignored for the purpose of parsing.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"2014-5-17T12:34:56+09:30"</span>, <span class="string">"%Y-%m-%dT%H:%M:%S%z"</span>),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">5</span>, <span class="number">17</span>)));</pre>
|
|||
|
|
<p>Out-of-bound dates or insufficient fields are errors.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"2015/9"</span>, <span class="string">"%Y/%m"</span>).<span class="ident">is_err</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"2015/9/31"</span>, <span class="string">"%Y/%m/%d"</span>).<span class="ident">is_err</span>());</pre>
|
|||
|
|
<p>All parsed fields should be consistent to each other, otherwise it's an error.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">parse_from_str</span>(<span class="string">"Sat, 09 Aug 2013"</span>, <span class="string">"%a, %d %b %Y"</span>).<span class="ident">is_err</span>());</pre>
|
|||
|
|
</div><h4 id='method.and_time' class="method"><span id='and_time.v' class='invisible'><code>pub fn <a href='#method.and_time' class='fnname'>and_time</a>(&self, time: <a class="struct" href="../../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#473-475' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date and given <code>NaiveTime</code>.</p>
|
|||
|
|
<h1 id="example-9" class="section-header"><a href="#example-9">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">NaiveTime</span>, <span class="ident">NaiveDateTime</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
<span class="kw">let</span> <span class="ident">t</span> <span class="op">=</span> <span class="ident">NaiveTime</span>::<span class="ident">from_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">and_time</span>(<span class="ident">t</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">date</span>(), <span class="ident">d</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">time</span>(), <span class="ident">t</span>);</pre>
|
|||
|
|
</div><h4 id='method.and_hms' class="method"><span id='and_hms.v' class='invisible'><code>pub fn <a href='#method.and_hms' class='fnname'>and_hms</a>(&self, hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#497-499' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute and second.</p>
|
|||
|
|
<p>No <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a> is allowed here;
|
|||
|
|
use <code>NaiveDate::and_hms_*</code> methods with a subsecond parameter instead.</p>
|
|||
|
|
<p>Panics on invalid hour, minute and/or second.</p>
|
|||
|
|
<h1 id="example-10" class="section-header"><a href="#example-10">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>, <span class="ident">Timelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Wed</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">second</span>(), <span class="number">56</span>);</pre>
|
|||
|
|
</div><h4 id='method.and_hms_opt' class="method"><span id='and_hms_opt.v' class='invisible'><code>pub fn <a href='#method.and_hms_opt' class='fnname'>and_hms_opt</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#520-522' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute and second.</p>
|
|||
|
|
<p>No <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a> is allowed here;
|
|||
|
|
use <code>NaiveDate::and_hms_*_opt</code> methods with a subsecond parameter instead.</p>
|
|||
|
|
<p>Returns <code>None</code> on invalid hour, minute and/or second.</p>
|
|||
|
|
<h1 id="example-11" class="section-header"><a href="#example-11">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">60</span>).<span class="ident">is_none</span>()); <span class="comment">// use `and_hms_milli_opt` instead</span>
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_opt</span>(<span class="number">12</span>, <span class="number">60</span>, <span class="number">56</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_opt</span>(<span class="number">24</span>, <span class="number">34</span>, <span class="number">56</span>).<span class="ident">is_none</span>());</pre>
|
|||
|
|
</div><h4 id='method.and_hms_milli' class="method"><span id='and_hms_milli.v' class='invisible'><code>pub fn <a href='#method.and_hms_milli' class='fnname'>and_hms_milli</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> milli: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#545-547' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and millisecond.</p>
|
|||
|
|
<p>The millisecond part can exceed 1,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Panics on invalid hour, minute, second and/or millisecond.</p>
|
|||
|
|
<h1 id="example-12" class="section-header"><a href="#example-12">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>, <span class="ident">Timelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Wed</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">second</span>(), <span class="number">56</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">nanosecond</span>(), <span class="number">789_000_000</span>);</pre>
|
|||
|
|
</div><h4 id='method.and_hms_milli_opt' class="method"><span id='and_hms_milli_opt.v' class='invisible'><code>pub fn <a href='#method.and_hms_milli_opt' class='fnname'>and_hms_milli_opt</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> milli: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#570-573' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and millisecond.</p>
|
|||
|
|
<p>The millisecond part can exceed 1,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Returns <code>None</code> on invalid hour, minute, second and/or millisecond.</p>
|
|||
|
|
<h1 id="example-13" class="section-header"><a href="#example-13">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">1_789</span>).<span class="ident">is_some</span>()); <span class="comment">// leap second</span>
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">2_789</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">60</span>, <span class="number">789</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">12</span>, <span class="number">60</span>, <span class="number">56</span>, <span class="number">789</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_milli_opt</span>(<span class="number">24</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>).<span class="ident">is_none</span>());</pre>
|
|||
|
|
</div><h4 id='method.and_hms_micro' class="method"><span id='and_hms_micro.v' class='invisible'><code>pub fn <a href='#method.and_hms_micro' class='fnname'>and_hms_micro</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> micro: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#596-598' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and microsecond.</p>
|
|||
|
|
<p>The microsecond part can exceed 1,000,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Panics on invalid hour, minute, second and/or microsecond.</p>
|
|||
|
|
<h1 id="example-14" class="section-header"><a href="#example-14">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>, <span class="ident">Timelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">and_hms_micro</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Wed</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">second</span>(), <span class="number">56</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">nanosecond</span>(), <span class="number">789_012_000</span>);</pre>
|
|||
|
|
</div><h4 id='method.and_hms_micro_opt' class="method"><span id='and_hms_micro_opt.v' class='invisible'><code>pub fn <a href='#method.and_hms_micro_opt' class='fnname'>and_hms_micro_opt</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> micro: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#621-624' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and microsecond.</p>
|
|||
|
|
<p>The microsecond part can exceed 1,000,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Returns <code>None</code> on invalid hour, minute, second and/or microsecond.</p>
|
|||
|
|
<h1 id="example-15" class="section-header"><a href="#example-15">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">1_789_012</span>).<span class="ident">is_some</span>()); <span class="comment">// leap second</span>
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">2_789_012</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">60</span>, <span class="number">789_012</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">12</span>, <span class="number">60</span>, <span class="number">56</span>, <span class="number">789_012</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_micro_opt</span>(<span class="number">24</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012</span>).<span class="ident">is_none</span>());</pre>
|
|||
|
|
</div><h4 id='method.and_hms_nano' class="method"><span id='and_hms_nano.v' class='invisible'><code>pub fn <a href='#method.and_hms_nano' class='fnname'>and_hms_nano</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> nano: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#647-649' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and nanosecond.</p>
|
|||
|
|
<p>The nanosecond part can exceed 1,000,000,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Panics on invalid hour, minute, second and/or nanosecond.</p>
|
|||
|
|
<h1 id="example-16" class="section-header"><a href="#example-16">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>, <span class="ident">Timelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">and_hms_nano</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012_345</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Wed</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">second</span>(), <span class="number">56</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">nanosecond</span>(), <span class="number">789_012_345</span>);</pre>
|
|||
|
|
</div><h4 id='method.and_hms_nano_opt' class="method"><span id='and_hms_nano_opt.v' class='invisible'><code>pub fn <a href='#method.and_hms_nano_opt' class='fnname'>and_hms_nano_opt</a>(<br> &self, <br> hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br> nano: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#672-675' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the current date, hour, minute, second and nanosecond.</p>
|
|||
|
|
<p>The nanosecond part can exceed 1,000,000,000
|
|||
|
|
in order to represent the <a href="./struct.NaiveTime.html#leap-second-handling">leap second</a>.</p>
|
|||
|
|
<p>Returns <code>None</code> on invalid hour, minute, second and/or nanosecond.</p>
|
|||
|
|
<h1 id="example-17" class="section-header"><a href="#example-17">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>);
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012_345</span>).<span class="ident">is_some</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">1_789_012_345</span>).<span class="ident">is_some</span>()); <span class="comment">// leap second</span>
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">59</span>, <span class="number">2_789_012_345</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">60</span>, <span class="number">789_012_345</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">12</span>, <span class="number">60</span>, <span class="number">56</span>, <span class="number">789_012_345</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">and_hms_nano_opt</span>(<span class="number">24</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789_012_345</span>).<span class="ident">is_none</span>());</pre>
|
|||
|
|
</div><h4 id='method.succ' class="method"><span id='succ.v' class='invisible'><code>pub fn <a href='#method.succ' class='fnname'>succ</a>(&self) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#724-726' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> for the next calendar date.</p>
|
|||
|
|
<p>Panics when <code>self</code> is the last representable date.</p>
|
|||
|
|
<h1 id="example-18" class="section-header"><a href="#example-18">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>).<span class="ident">succ</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">4</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">30</span>).<span class="ident">succ</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">7</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">12</span>, <span class="number">31</span>).<span class="ident">succ</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
|
|||
|
|
</div><h4 id='method.succ_opt' class="method"><span id='succ_opt.v' class='invisible'><code>pub fn <a href='#method.succ_opt' class='fnname'>succ_opt</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#743-745' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> for the next calendar date.</p>
|
|||
|
|
<p>Returns <code>None</code> when <code>self</code> is the last representable date.</p>
|
|||
|
|
<h1 id="example-19" class="section-header"><a href="#example-19">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">naive</span>::<span class="ident">MAX_DATE</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>).<span class="ident">succ_opt</span>(),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">4</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">MAX_DATE</span>.<span class="ident">succ_opt</span>(), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
</div><h4 id='method.pred' class="method"><span id='pred.v' class='invisible'><code>pub fn <a href='#method.pred' class='fnname'>pred</a>(&self) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#761-763' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> for the previous calendar date.</p>
|
|||
|
|
<p>Panics when <code>self</code> is the first representable date.</p>
|
|||
|
|
<h1 id="example-20" class="section-header"><a href="#example-20">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>).<span class="ident">pred</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">2</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">1</span>).<span class="ident">pred</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">5</span>, <span class="number">31</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">pred</span>(), <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">12</span>, <span class="number">31</span>));</pre>
|
|||
|
|
</div><h4 id='method.pred_opt' class="method"><span id='pred_opt.v' class='invisible'><code>pub fn <a href='#method.pred_opt' class='fnname'>pred_opt</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#780-782' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> for the previous calendar date.</p>
|
|||
|
|
<p>Returns <code>None</code> when <code>self</code> is the first representable date.</p>
|
|||
|
|
<h1 id="example-21" class="section-header"><a href="#example-21">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">naive</span>::<span class="ident">MIN_DATE</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">3</span>).<span class="ident">pred_opt</span>(),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">6</span>, <span class="number">2</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">MIN_DATE</span>.<span class="ident">pred_opt</span>(), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
</div><h4 id='method.checked_add_signed' class="method"><span id='checked_add_signed.v' class='invisible'><code>pub fn <a href='#method.checked_add_signed' class='fnname'>checked_add_signed</a>(self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#806-818' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Adds the <code>days</code> part of given <code>Duration</code> to the current date.</p>
|
|||
|
|
<p>Returns <code>None</code> when it will result in overflow.</p>
|
|||
|
|
<h1 id="example-22" class="section-header"><a href="#example-22">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">naive</span>::<span class="ident">MAX_DATE</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_add_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">40</span>)),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">15</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_add_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">40</span>)),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">7</span>, <span class="number">27</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_add_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1_000_000_000</span>)), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_add_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1_000_000_000</span>)), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">MAX_DATE</span>.<span class="ident">checked_add_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>)), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
</div><h4 id='method.checked_sub_signed' class="method"><span id='checked_sub_signed.v' class='invisible'><code>pub fn <a href='#method.checked_sub_signed' class='fnname'>checked_sub_signed</a>(self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#842-854' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Subtracts the <code>days</code> part of given <code>Duration</code> from the current date.</p>
|
|||
|
|
<p>Returns <code>None</code> when it will result in overflow.</p>
|
|||
|
|
<h1 id="example-23" class="section-header"><a href="#example-23">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">naive</span>::<span class="ident">MIN_DATE</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_sub_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">40</span>)),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">7</span>, <span class="number">27</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_sub_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">40</span>)),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">15</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_sub_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1_000_000_000</span>)), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">checked_sub_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1_000_000_000</span>)), <span class="prelude-val">None</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">MIN_DATE</span>.<span class="ident">checked_sub_signed</span>(<span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>)), <span class="prelude-val">None</span>);</pre>
|
|||
|
|
</div><h4 id='method.signed_duration_since' class="method"><span id='signed_duration_since.v' class='invisible'><code>pub fn <a href='#method.signed_duration_since' class='fnname'>signed_duration_since</a>(self, rhs: <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#881-890' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Subtracts another <code>NaiveDate</code> from the current date.
|
|||
|
|
Returns a <code>Duration</code> of integral numbers.</p>
|
|||
|
|
<p>This does not overflow or underflow at all,
|
|||
|
|
as all possible output fits in the range of <code>Duration</code>.</p>
|
|||
|
|
<h1 id="example-24" class="section-header"><a href="#example-24">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
<span class="kw">let</span> <span class="ident">since</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">signed_duration_since</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="ident">Duration</span>::<span class="ident">zero</span>());
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">9</span>, <span class="number">23</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">100</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2010</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">since</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">1614</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>));</pre>
|
|||
|
|
</div><h4 id='method.format_with_items' class="method"><span id='format_with_items.v' class='invisible'><code>pub fn <a href='#method.format_with_items' class='fnname'>format_with_items</a><'a, I>(&self, items: I) -> <a class="struct" href="../../chrono/format/struct.DelayedFormat.html" title="struct chrono::format::DelayedFormat">DelayedFormat</a><I> <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a><Item = <a class="enum" href="../../chrono/format/enum.Item.html" title="enum chrono::format::Item">Item</a><'a>> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#920-923' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Formats the date with the specified formatting items.
|
|||
|
|
Otherwise it is same to the ordinary <code>format</code> method.</p>
|
|||
|
|
<p>The <code>Iterator</code> of items should be <code>Clone</code>able,
|
|||
|
|
since the resulting <code>DelayedFormat</code> value may be formatted multiple times.</p>
|
|||
|
|
<h1 id="example-25" class="section-header"><a href="#example-25">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">format</span>::<span class="ident">strftime</span>::<span class="ident">StrftimeItems</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">fmt</span> <span class="op">=</span> <span class="ident">StrftimeItems</span>::<span class="ident">new</span>(<span class="string">"%Y-%m-%d"</span>);
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">format_with_items</span>(<span class="ident">fmt</span>.<span class="ident">clone</span>()).<span class="ident">to_string</span>(), <span class="string">"2015-09-05"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">format</span>(<span class="string">"%Y-%m-%d"</span>).<span class="ident">to_string</span>(), <span class="string">"2015-09-05"</span>);</pre>
|
|||
|
|
<p>The resulting <code>DelayedFormat</code> can be formatted directly via the <code>Display</code> trait.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">d</span>.<span class="ident">format_with_items</span>(<span class="ident">fmt</span>)), <span class="string">"2015-09-05"</span>);</pre>
|
|||
|
|
</div><h4 id='method.format' class="method"><span id='format.v' class='invisible'><code>pub fn <a href='#method.format' class='fnname'>format</a><'a>(&self, fmt: &'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="struct" href="../../chrono/format/struct.DelayedFormat.html" title="struct chrono::format::DelayedFormat">DelayedFormat</a><<a class="struct" href="../../chrono/format/strftime/struct.StrftimeItems.html" title="struct chrono::format::strftime::StrftimeItems">StrftimeItems</a><'a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#958-960' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Formats the date with the specified format string.
|
|||
|
|
See the <a href="../format/strftime/index.html"><code>format::strftime</code> module</a>
|
|||
|
|
on the supported escape sequences.</p>
|
|||
|
|
<p>This returns a <code>DelayedFormat</code>,
|
|||
|
|
which gets converted to a string only when actual formatting happens.
|
|||
|
|
You may use the <code>to_string</code> method to get a <code>String</code>,
|
|||
|
|
or just feed it into <code>print!</code> and other formatting macros.
|
|||
|
|
(In this way it avoids the redundant memory allocation.)</p>
|
|||
|
|
<p>A wrong format string does <em>not</em> issue an error immediately.
|
|||
|
|
Rather, converting or formatting the <code>DelayedFormat</code> fails.
|
|||
|
|
You are recommended to immediately use <code>DelayedFormat</code> for this reason.</p>
|
|||
|
|
<h1 id="example-26" class="section-header"><a href="#example-26">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">format</span>(<span class="string">"%Y-%m-%d"</span>).<span class="ident">to_string</span>(), <span class="string">"2015-09-05"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">format</span>(<span class="string">"%A, %-d %B, %C%y"</span>).<span class="ident">to_string</span>(), <span class="string">"Saturday, 5 September, 2015"</span>);</pre>
|
|||
|
|
<p>The resulting <code>DelayedFormat</code> can be formatted directly via the <code>Display</code> trait.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">d</span>.<span class="ident">format</span>(<span class="string">"%Y-%m-%d"</span>)), <span class="string">"2015-09-05"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">d</span>.<span class="ident">format</span>(<span class="string">"%A, %-d %B, %C%y"</span>)), <span class="string">"Saturday, 5 September, 2015"</span>);</pre>
|
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</div></div>
|
|||
|
|
<h2 id='implementations' class='small-section-header'>
|
|||
|
|
Trait Implementations<a href='#implementations' class='anchor'></a>
|
|||
|
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</h2>
|
|||
|
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<h3 id='impl-Serialize' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Serialize' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1609-1625' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.serialize' class="method"><span id='serialize.v' class='invisible'><code>fn <a href='../../serde/ser/trait.Serialize.html#tymethod.serialize' class='fnname'>serialize</a><S>(&self, serializer: S) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><S::<a class="type" href="../../serde/ser/trait.Serializer.html#associatedtype.Ok" title="type serde::ser::Serializer::Ok">Ok</a>, S::<a class="type" href="../../serde/ser/trait.Serializer.html#associatedtype.Error" title="type serde::ser::Serializer::Error">Error</a>> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../serde/ser/trait.Serializer.html" title="trait serde::ser::Serializer">Serializer</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1610-1624' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Serialize this value into the given Serde serializer. <a href="../../serde/ser/trait.Serialize.html#tymethod.serialize">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Deserialize%3C%27de%3E' class='impl'><span class='in-band'><code>impl<'de> <a class="trait" href="../../serde/de/trait.Deserialize.html" title="trait serde::de::Deserialize">Deserialize</a><'de> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Deserialize%3C%27de%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1644-1650' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.deserialize' class="method"><span id='deserialize.v' class='invisible'><code>fn <a href='../../serde/de/trait.Deserialize.html#tymethod.deserialize' class='fnname'>deserialize</a><D>(deserializer: D) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, D::<a class="type" href="../../serde/de/trait.Deserializer.html#associatedtype.Error" title="type serde::de::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> D: <a class="trait" href="../../serde/de/trait.Deserializer.html" title="trait serde::de::Deserializer">Deserializer</a><'de>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1645-1649' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Deserialize this value from the given Serde deserializer. <a href="../../serde/de/trait.Deserialize.html#tymethod.deserialize">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-PartialEq' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-PartialEq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
|
|||
|
|
</div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests for <code>!=</code>.</p>
|
|||
|
|
</div></div><h3 id='impl-Eq' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Eq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'></div><h3 id='impl-Hash' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Hash' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.hash' class="method"><span id='hash.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash' class='fnname'>hash</a><__H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>>(&self, __arg_0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>__H)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Feeds this value into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash">Read more</a></p>
|
|||
|
|
</div><h4 id='method.hash_slice' class="method"><span id='hash_slice.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice' class='fnname'>hash_slice</a><H>(data: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[Self]</a>, state: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>H) <span class="where fmt-newline">where<br> H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/hash/mod.rs.html#202-208' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Feeds a slice of this type into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-PartialOrd' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-PartialOrd' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.partial_cmp' class="method"><span id='partial_cmp.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp' class='fnname'>partial_cmp</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method returns an ordering between <code>self</code> and <code>other</code> values if one exists. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp">Read more</a></p>
|
|||
|
|
</div><h4 id='method.lt' class="method"><span id='lt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt' class='fnname'>lt</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests less than (for <code>self</code> and <code>other</code>) and is used by the <code><</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt">Read more</a></p>
|
|||
|
|
</div><h4 id='method.le' class="method"><span id='le.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le' class='fnname'>le</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests less than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code><=</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le">Read more</a></p>
|
|||
|
|
</div><h4 id='method.gt' class="method"><span id='gt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt' class='fnname'>gt</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests greater than (for <code>self</code> and <code>other</code>) and is used by the <code>></code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt">Read more</a></p>
|
|||
|
|
</div><h4 id='method.ge' class="method"><span id='ge.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge' class='fnname'>ge</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method tests greater than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code>>=</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Ord' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Ord' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.cmp' class="method"><span id='cmp.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp' class='fnname'>cmp</a>(&self, __arg_0: &<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>This method returns an <code>Ordering</code> between <code>self</code> and <code>other</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp">Read more</a></p>
|
|||
|
|
</div><h4 id='method.max' class="method"><span id='max.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max' class='fnname'>max</a>(self, other: Self) -> Self</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#460-463' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Compares and returns the maximum of two values. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max">Read more</a></p>
|
|||
|
|
</div><h4 id='method.min' class="method"><span id='min.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min' class='fnname'>min</a>(self, other: Self) -> Self</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#476-479' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Compares and returns the minimum of two values. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Copy' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Copy' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#96' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
|||
|
|
</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Datelike' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../chrono/trait.Datelike.html" title="trait chrono::Datelike">Datelike</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Datelike' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#963-1303' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.year' class="method"><span id='year.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.year' class='fnname'>year</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#975-977' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the year number in the <a href="#calendar-date">calendar date</a>.</p>
|
|||
|
|
<h1 id="example-27" class="section-header"><a href="#example-27">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">year</span>(), <span class="number">2015</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">year</span>(), <span class="op">-</span><span class="number">308</span>); <span class="comment">// 309 BCE</span></pre>
|
|||
|
|
</div><h4 id='method.month' class="method"><span id='month.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.month' class='fnname'>month</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#992-994' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the month number starting from 1.</p>
|
|||
|
|
<p>The return value ranges from 1 to 12.</p>
|
|||
|
|
<h1 id="example-28" class="section-header"><a href="#example-28">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">month</span>(), <span class="number">9</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">month</span>(), <span class="number">3</span>);</pre>
|
|||
|
|
</div><h4 id='method.month0' class="method"><span id='month0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.month0' class='fnname'>month0</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1009-1011' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the month number starting from 0.</p>
|
|||
|
|
<p>The return value ranges from 0 to 11.</p>
|
|||
|
|
<h1 id="example-29" class="section-header"><a href="#example-29">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">month0</span>(), <span class="number">8</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">month0</span>(), <span class="number">2</span>);</pre>
|
|||
|
|
</div><h4 id='method.day' class="method"><span id='day.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.day' class='fnname'>day</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1049-1051' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the day of month starting from 1.</p>
|
|||
|
|
<p>The return value ranges from 1 to 31. (The last day of month differs by months.)</p>
|
|||
|
|
<h1 id="example-30" class="section-header"><a href="#example-30">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">day</span>(), <span class="number">8</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">day</span>(), <span class="number">14</span>);</pre>
|
|||
|
|
<p>Combined with <a href="#method.pred"><code>NaiveDate::pred</code></a>,
|
|||
|
|
one can determine the number of days in a particular month.
|
|||
|
|
(Note that this panics when <code>year</code> is out of range.)</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">ndays_in_month</span>(<span class="ident">year</span>: <span class="ident">i32</span>, <span class="ident">month</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">u32</span> {
|
|||
|
|
<span class="comment">// the first day of the next month...</span>
|
|||
|
|
<span class="kw">let</span> (<span class="ident">y</span>, <span class="ident">m</span>) <span class="op">=</span> <span class="kw">if</span> <span class="ident">month</span> <span class="op">==</span> <span class="number">12</span> { (<span class="ident">year</span> <span class="op">+</span> <span class="number">1</span>, <span class="number">1</span>) } <span class="kw">else</span> { (<span class="ident">year</span>, <span class="ident">month</span> <span class="op">+</span> <span class="number">1</span>) };
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="ident">y</span>, <span class="ident">m</span>, <span class="number">1</span>);
|
|||
|
|
|
|||
|
|
<span class="comment">// ...is preceded by the last day of the original month</span>
|
|||
|
|
<span class="ident">d</span>.<span class="ident">pred</span>().<span class="ident">day</span>()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_month</span>(<span class="number">2015</span>, <span class="number">8</span>), <span class="number">31</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_month</span>(<span class="number">2015</span>, <span class="number">9</span>), <span class="number">30</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_month</span>(<span class="number">2015</span>, <span class="number">12</span>), <span class="number">31</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_month</span>(<span class="number">2016</span>, <span class="number">2</span>), <span class="number">29</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_month</span>(<span class="number">2017</span>, <span class="number">2</span>), <span class="number">28</span>);</pre>
|
|||
|
|
</div><h4 id='method.day0' class="method"><span id='day0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.day0' class='fnname'>day0</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1066-1068' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the day of month starting from 0.</p>
|
|||
|
|
<p>The return value ranges from 0 to 30. (The last day of month differs by months.)</p>
|
|||
|
|
<h1 id="example-31" class="section-header"><a href="#example-31">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">day0</span>(), <span class="number">7</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">day0</span>(), <span class="number">13</span>);</pre>
|
|||
|
|
</div><h4 id='method.ordinal' class="method"><span id='ordinal.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.ordinal' class='fnname'>ordinal</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1105-1107' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the day of year starting from 1.</p>
|
|||
|
|
<p>The return value ranges from 1 to 366. (The last day of year differs by years.)</p>
|
|||
|
|
<h1 id="example-32" class="section-header"><a href="#example-32">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">ordinal</span>(), <span class="number">251</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">ordinal</span>(), <span class="number">74</span>);</pre>
|
|||
|
|
<p>Combined with <a href="#method.pred"><code>NaiveDate::pred</code></a>,
|
|||
|
|
one can determine the number of days in a particular year.
|
|||
|
|
(Note that this panics when <code>year</code> is out of range.)</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">ndays_in_year</span>(<span class="ident">year</span>: <span class="ident">i32</span>) <span class="op">-></span> <span class="ident">u32</span> {
|
|||
|
|
<span class="comment">// the first day of the next year...</span>
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="ident">year</span> <span class="op">+</span> <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>);
|
|||
|
|
|
|||
|
|
<span class="comment">// ...is preceded by the last day of the original year</span>
|
|||
|
|
<span class="ident">d</span>.<span class="ident">pred</span>().<span class="ident">ordinal</span>()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_year</span>(<span class="number">2015</span>), <span class="number">365</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_year</span>(<span class="number">2016</span>), <span class="number">366</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_year</span>(<span class="number">2017</span>), <span class="number">365</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_year</span>(<span class="number">2000</span>), <span class="number">366</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">ndays_in_year</span>(<span class="number">2100</span>), <span class="number">365</span>);</pre>
|
|||
|
|
</div><h4 id='method.ordinal0' class="method"><span id='ordinal0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.ordinal0' class='fnname'>ordinal0</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1122-1124' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the day of year starting from 0.</p>
|
|||
|
|
<p>The return value ranges from 0 to 365. (The last day of year differs by years.)</p>
|
|||
|
|
<h1 id="example-33" class="section-header"><a href="#example-33">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">ordinal0</span>(), <span class="number">250</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">ordinal0</span>(), <span class="number">73</span>);</pre>
|
|||
|
|
</div><h4 id='method.weekday' class="method"><span id='weekday.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.weekday' class='fnname'>weekday</a>(&self) -> <a class="enum" href="../../chrono/enum.Weekday.html" title="enum chrono::Weekday">Weekday</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1137-1139' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the day of week.</p>
|
|||
|
|
<h1 id="example-34" class="section-header"><a href="#example-34">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Tue</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">3</span>, <span class="number">14</span>).<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Fri</span>);</pre>
|
|||
|
|
</div><h4 id='method.iso_week' class="method"><span id='iso_week.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.iso_week' class='fnname'>iso_week</a>(&self) -> <a class="struct" href="../../chrono/naive/struct.IsoWeek.html" title="struct chrono::naive::IsoWeek">IsoWeek</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1142-1144' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the ISO week.</p>
|
|||
|
|
</div><h4 id='method.with_year' class="method"><span id='with_year.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_year' class='fnname'>with_year</a>(&self, year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1169-1178' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the year number changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-35" class="section-header"><a href="#example-35">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_year</span>(<span class="number">2016</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">9</span>, <span class="number">8</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_year</span>(<span class="op">-</span><span class="number">308</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">9</span>, <span class="number">8</span>)));</pre>
|
|||
|
|
<p>A leap day (February 29) is a good example that this method can return <code>None</code>.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">with_year</span>(<span class="number">2015</span>).<span class="ident">is_none</span>());
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">with_year</span>(<span class="number">2020</span>).<span class="ident">is_some</span>());</pre>
|
|||
|
|
</div><h4 id='method.with_month' class="method"><span id='with_month.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_month' class='fnname'>with_month</a>(&self, month: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1195-1197' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the month number (starting from 1) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-36" class="section-header"><a href="#example-36">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_month</span>(<span class="number">10</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">8</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_month</span>(<span class="number">13</span>), <span class="prelude-val">None</span>); <span class="comment">// no month 13</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">with_month</span>(<span class="number">2</span>), <span class="prelude-val">None</span>); <span class="comment">// no February 30</span></pre>
|
|||
|
|
</div><h4 id='method.with_month0' class="method"><span id='with_month0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_month0' class='fnname'>with_month0</a>(&self, month0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1214-1216' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the month number (starting from 0) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-37" class="section-header"><a href="#example-37">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_month0</span>(<span class="number">9</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">8</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_month0</span>(<span class="number">12</span>), <span class="prelude-val">None</span>); <span class="comment">// no month 13</span>
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">with_month0</span>(<span class="number">1</span>), <span class="prelude-val">None</span>); <span class="comment">// no February 30</span></pre>
|
|||
|
|
</div><h4 id='method.with_day' class="method"><span id='with_day.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_day' class='fnname'>with_day</a>(&self, day: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1233-1235' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the day of month (starting from 1) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-38" class="section-header"><a href="#example-38">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_day</span>(<span class="number">30</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_day</span>(<span class="number">31</span>),
|
|||
|
|
<span class="prelude-val">None</span>); <span class="comment">// no September 31</span></pre>
|
|||
|
|
</div><h4 id='method.with_day0' class="method"><span id='with_day0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_day0' class='fnname'>with_day0</a>(&self, day0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1252-1254' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the day of month (starting from 0) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-39" class="section-header"><a href="#example-39">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_day0</span>(<span class="number">29</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">with_day0</span>(<span class="number">30</span>),
|
|||
|
|
<span class="prelude-val">None</span>); <span class="comment">// no September 31</span></pre>
|
|||
|
|
</div><h4 id='method.with_ordinal' class="method"><span id='with_ordinal.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_ordinal' class='fnname'>with_ordinal</a>(&self, ordinal: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1276-1278' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the day of year (starting from 1) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-40" class="section-header"><a href="#example-40">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal</span>(<span class="number">60</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">1</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal</span>(<span class="number">366</span>),
|
|||
|
|
<span class="prelude-val">None</span>); <span class="comment">// 2015 had only 365 days</span>
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal</span>(<span class="number">60</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal</span>(<span class="number">366</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">12</span>, <span class="number">31</span>)));</pre>
|
|||
|
|
</div><h4 id='method.with_ordinal0' class="method"><span id='with_ordinal0.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#tymethod.with_ordinal0' class='fnname'>with_ordinal0</a>(&self, ordinal0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1300-1302' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Makes a new <code>NaiveDate</code> with the day of year (starting from 0) changed.</p>
|
|||
|
|
<p>Returns <code>None</code> when the resulting <code>NaiveDate</code> would be invalid.</p>
|
|||
|
|
<h1 id="example-41" class="section-header"><a href="#example-41">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::{<span class="ident">NaiveDate</span>, <span class="ident">Datelike</span>};
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal0</span>(<span class="number">59</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">1</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal0</span>(<span class="number">365</span>),
|
|||
|
|
<span class="prelude-val">None</span>); <span class="comment">// 2015 had only 365 days</span>
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal0</span>(<span class="number">59</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>)));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">1</span>, <span class="number">1</span>).<span class="ident">with_ordinal0</span>(<span class="number">365</span>),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">12</span>, <span class="number">31</span>)));</pre>
|
|||
|
|
</div><h4 id='method.year_ce' class="method"><span id='year_ce.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#method.year_ce' class='fnname'>year_ce</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/lib.rs.html#807-814' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the absolute year number starting from 1 with a boolean flag, which is false when the year predates the epoch (BCE/BC) and true otherwise (CE/AD). <a href="../../chrono/trait.Datelike.html#method.year_ce">Read more</a></p>
|
|||
|
|
</div><h4 id='method.num_days_from_ce' class="method"><span id='num_days_from_ce.v' class='invisible'><code>fn <a href='../../chrono/trait.Datelike.html#method.num_days_from_ce' class='fnname'>num_days_from_ce</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/lib.rs.html#897-909' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Returns the number of days since January 1, Year 1 (aka Day 1) in the proleptic Gregorian calendar. <a href="../../chrono/trait.Datelike.html#method.num_days_from_ce">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Add%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a><<a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Add%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1330-1337' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>An addition of <code>Duration</code> to <code>NaiveDate</code> discards the fractional days,
|
|||
|
|
rounding to the closest integral number of days towards <code>Duration::zero()</code>.</p>
|
|||
|
|
<p>Panics on underflow or overflow.
|
|||
|
|
Use <a href="#method.checked_add_signed"><code>NaiveDate::checked_add_signed</code></a> to detect that.</p>
|
|||
|
|
<h1 id="example-42" class="section-header"><a href="#example-42">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">364</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">12</span>, <span class="number">31</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2018</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>), <span class="ident">from_ymd</span>(<span class="number">2414</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='associatedtype.Output' class="type"><span id='Output.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span></h4>
|
|||
|
|
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
|
|||
|
|
</div><h4 id='method.add' class="method"><span id='add.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1334-1336' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
|
|||
|
|
</div></div><h3 id='impl-AddAssign%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a><<a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-AddAssign%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1339-1344' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.add_assign' class="method"><span id='add_assign.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html#tymethod.add_assign' class='fnname'>add_assign</a>(&mut self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1341-1343' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs the <code>+=</code> operation.</p>
|
|||
|
|
</div></div><h3 id='impl-Sub%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a><<a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Sub%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1372-1379' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>A subtraction of <code>Duration</code> from <code>NaiveDate</code> discards the fractional days,
|
|||
|
|
rounding to the closest integral number of days towards <code>Duration::zero()</code>.
|
|||
|
|
It is same to the addition with a negated <code>Duration</code>.</p>
|
|||
|
|
<p>Panics on underflow or overflow.
|
|||
|
|
Use <a href="#method.checked_sub_signed"><code>NaiveDate::checked_sub_signed</code></a> to detect that.</p>
|
|||
|
|
<h1 id="example-43" class="section-header"><a href="#example-43">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">364</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">1</span>, <span class="number">2</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2010</span>, <span class="number">1</span>, <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>), <span class="ident">from_ymd</span>(<span class="number">1614</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='associatedtype.Output-1' class="type"><span id='Output.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span></h4>
|
|||
|
|
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
|
|||
|
|
</div><h4 id='method.sub' class="method"><span id='sub.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -> <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1376-1378' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
|
|||
|
|
</div></div><h3 id='impl-SubAssign%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html" title="trait core::ops::arith::SubAssign">SubAssign</a><<a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-SubAssign%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1381-1386' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='impl-items'><h4 id='method.sub_assign' class="method"><span id='sub_assign.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html#tymethod.sub_assign' class='fnname'>sub_assign</a>(&mut self, rhs: <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1383-1385' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs the <code>-=</code> operation.</p>
|
|||
|
|
</div></div><h3 id='impl-Sub%3CNaiveDate%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Sub%3CNaiveDate%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1415-1422' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>Subtracts another <code>NaiveDate</code> from the current date.
|
|||
|
|
Returns a <code>Duration</code> of integral numbers.</p>
|
|||
|
|
<p>This does not overflow or underflow at all,
|
|||
|
|
as all possible output fits in the range of <code>Duration</code>.</p>
|
|||
|
|
<p>The implementation is a wrapper around
|
|||
|
|
<a href="#method.signed_duration_since"><code>NaiveDate::signed_duration_since</code></a>.</p>
|
|||
|
|
<h1 id="example-44" class="section-header"><a href="#example-44">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">Duration</span>::<span class="ident">zero</span>());
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">9</span>, <span class="number">23</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">100</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">2010</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>));
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">from_ymd</span>(<span class="number">1614</span>, <span class="number">1</span>, <span class="number">1</span>), <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>));</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='associatedtype.Output-2' class="type"><span id='Output.t-2' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a></code></span></h4>
|
|||
|
|
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
|
|||
|
|
</div><h4 id='method.sub-1' class="method"><span id='sub.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>) -> <a class="struct" href="../../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1419-1421' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
|
|||
|
|
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1446-1457' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>The <code>Debug</code> output of the naive date <code>d</code> is same to
|
|||
|
|
<a href="../format/strftime/index.html"><code>d.format("%Y-%m-%d")</code></a>.</p>
|
|||
|
|
<p>The string printed can be readily parsed via the <code>parse</code> method on <code>str</code>.</p>
|
|||
|
|
<h1 id="example-45" class="section-header"><a href="#example-45">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>)), <span class="string">"2015-09-05"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>( <span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="string">"0000-01-01"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">9999</span>, <span class="number">12</span>, <span class="number">31</span>)), <span class="string">"9999-12-31"</span>);</pre>
|
|||
|
|
<p>ISO 8601 requires an explicit sign for years before 1 BCE or after 9999 CE.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>( <span class="op">-</span><span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="string">"-0001-01-01"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">10000</span>, <span class="number">12</span>, <span class="number">31</span>)), <span class="string">"+10000-12-31"</span>);</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1447-1456' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-Display' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Display' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1481-1483' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>The <code>Display</code> output of the naive date <code>d</code> is same to
|
|||
|
|
<a href="../format/strftime/index.html"><code>d.format("%Y-%m-%d")</code></a>.</p>
|
|||
|
|
<p>The string printed can be readily parsed via the <code>parse</code> method on <code>str</code>.</p>
|
|||
|
|
<h1 id="example-46" class="section-header"><a href="#example-46">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">5</span>)), <span class="string">"2015-09-05"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>( <span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="string">"0000-01-01"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">9999</span>, <span class="number">12</span>, <span class="number">31</span>)), <span class="string">"9999-12-31"</span>);</pre>
|
|||
|
|
<p>ISO 8601 requires an explicit sign for years before 1 BCE or after 9999 CE.</p>
|
|||
|
|
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>( <span class="op">-</span><span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>)), <span class="string">"-0001-01-01"</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">10000</span>, <span class="number">12</span>, <span class="number">31</span>)), <span class="string">"+10000-12-31"</span>);</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='method.fmt-1' class="method"><span id='fmt.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1482' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
|||
|
|
</div></div><h3 id='impl-FromStr' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html" title="trait core::str::FromStr">FromStr</a> for <a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-FromStr' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1501-1518' title='goto source code'>[src]</a></span></h3>
|
|||
|
|
<div class='docblock'><p>Parsing a <code>str</code> into a <code>NaiveDate</code> uses the same format,
|
|||
|
|
<a href="../format/strftime/index.html"><code>%Y-%m-%d</code></a>, as in <code>Debug</code> and <code>Display</code>.</p>
|
|||
|
|
<h1 id="example-47" class="section-header"><a href="#example-47">Example</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">18</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"2015-09-18"</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">NaiveDate</span><span class="op">></span>(), <span class="prelude-val">Ok</span>(<span class="ident">d</span>));
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">12345</span>, <span class="number">6</span>, <span class="number">7</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"+12345-6-7"</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">NaiveDate</span><span class="op">></span>(), <span class="prelude-val">Ok</span>(<span class="ident">d</span>));
|
|||
|
|
|
|||
|
|
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">"foo"</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">NaiveDate</span><span class="op">></span>().<span class="ident">is_err</span>());</pre>
|
|||
|
|
</div><div class='impl-items'><h4 id='associatedtype.Err' class="type"><span id='Err.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#associatedtype.Err' class="type">Err</a> = <a class="struct" href="../../chrono/format/struct.ParseError.html" title="struct chrono::format::ParseError">ParseError</a></code></span></h4>
|
|||
|
|
<div class='docblock'><p>The associated error which can be returned from parsing.</p>
|
|||
|
|
</div><h4 id='method.from_str' class="method"><span id='from_str.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#tymethod.from_str' class='fnname'>from_str</a>(s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../chrono/format/type.ParseResult.html" title="type chrono::format::ParseResult">ParseResult</a><<a class="struct" href="../../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/chrono/naive/date.rs.html#1504-1517' title='goto source code'>[src]</a></span></h4>
|
|||
|
|
<div class='docblock'><p>Parses a string <code>s</code> to return a value of this type. <a href="https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#tymethod.from_str">Read more</a></p>
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</div></div></section>
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