145 lines
No EOL
6.6 KiB
HTML
145 lines
No EOL
6.6 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta charset="utf-8">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||
<meta name="generator" content="rustdoc">
|
||
<meta name="description" content="API documentation for the Rust `f2s_buffered_n` fn in crate `ryu`.">
|
||
<meta name="keywords" content="rust, rustlang, rust-lang, f2s_buffered_n">
|
||
|
||
<title>ryu::raw::f2s_buffered_n - Rust</title>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../normalize.css">
|
||
<link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle">
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../dark.css">
|
||
<link rel="stylesheet" type="text/css" href="../../main.css" id="themeStyle">
|
||
<script src="../../storage.js"></script>
|
||
|
||
|
||
|
||
|
||
</head>
|
||
<body class="rustdoc fn">
|
||
<!--[if lte IE 8]>
|
||
<div class="warning">
|
||
This old browser is unsupported and will most likely display funky
|
||
things.
|
||
</div>
|
||
<![endif]-->
|
||
|
||
|
||
|
||
<nav class="sidebar">
|
||
<div class="sidebar-menu">☰</div>
|
||
|
||
<p class='location'><a href='../index.html'>ryu</a>::<wbr><a href='index.html'>raw</a></p><script>window.sidebarCurrent = {name: 'f2s_buffered_n', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script>
|
||
</nav>
|
||
|
||
<div class="theme-picker">
|
||
<button id="theme-picker" aria-label="Pick another theme!">
|
||
<img src="../../brush.svg" width="18" alt="Pick another theme!">
|
||
</button>
|
||
<div id="theme-choices"></div>
|
||
</div>
|
||
<script src="../../theme.js"></script>
|
||
<nav class="sub">
|
||
<form class="search-form js-only">
|
||
<div class="search-container">
|
||
<input class="search-input" name="search"
|
||
autocomplete="off"
|
||
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
|
||
type="search">
|
||
</div>
|
||
</form>
|
||
</nav>
|
||
|
||
<section id='main' class="content">
|
||
<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>ryu</a>::<wbr><a href='index.html'>raw</a>::<wbr><a class="fn" href=''>f2s_buffered_n</a></span><span class='out-of-band'><span id='render-detail'>
|
||
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
|
||
[<span class='inner'>−</span>]
|
||
</a>
|
||
</span><a class='srclink' href='../../src/ryu/f2s.rs.html#475-494' title='goto source code'>[src]</a></span></h1>
|
||
<pre class='rust fn'>pub unsafe fn f2s_buffered_n(f: f32, result: *mut u8) -> usize</pre><div class='docblock'><p>Print f32 to the given buffer and return number of bytes written.</p>
|
||
<p>At most 15 bytes will be written.</p>
|
||
<h2 id="special-cases" class="section-header"><a href="#special-cases">Special cases</a></h2>
|
||
<p>This function represents any NaN as <code>NaN</code>, positive infinity as <code>Infinity</code>,
|
||
and negative infinity as <code>-Infinity</code>.</p>
|
||
<h2 id="safety" class="section-header"><a href="#safety">Safety</a></h2>
|
||
<p>The <code>result</code> pointer argument must point to sufficiently many writable bytes
|
||
to hold Ryū's representation of <code>f</code>.</p>
|
||
<h2 id="example" class="section-header"><a href="#example">Example</a></h2>
|
||
<pre class="rust rust-example-rendered">
|
||
<span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">1.234f32</span>;
|
||
|
||
<span class="kw">unsafe</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buffer</span>: [<span class="ident">u8</span>; <span class="number">15</span>] <span class="op">=</span> <span class="ident">std</span>::<span class="ident">mem</span>::<span class="ident">uninitialized</span>();
|
||
<span class="kw">let</span> <span class="ident">n</span> <span class="op">=</span> <span class="ident">ryu</span>::<span class="ident">raw</span>::<span class="ident">f2s_buffered_n</span>(<span class="ident">f</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buffer</span>[<span class="number">0</span>]);
|
||
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">std</span>::<span class="ident">str</span>::<span class="ident">from_utf8_unchecked</span>(<span class="kw-2">&</span><span class="ident">buffer</span>[..<span class="ident">n</span>]);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>, <span class="string">"1.234E0"</span>);
|
||
}</pre>
|
||
</div></section>
|
||
<section id='search' class="content hidden"></section>
|
||
|
||
<section class="footer"></section>
|
||
|
||
<aside id="help" class="hidden">
|
||
<div>
|
||
<h1 class="hidden">Help</h1>
|
||
|
||
<div class="shortcuts">
|
||
<h2>Keyboard Shortcuts</h2>
|
||
|
||
<dl>
|
||
<dt><kbd>?</kbd></dt>
|
||
<dd>Show this help dialog</dd>
|
||
<dt><kbd>S</kbd></dt>
|
||
<dd>Focus the search field</dd>
|
||
<dt><kbd>↑</kbd></dt>
|
||
<dd>Move up in search results</dd>
|
||
<dt><kbd>↓</kbd></dt>
|
||
<dd>Move down in search results</dd>
|
||
<dt><kbd>↹</kbd></dt>
|
||
<dd>Switch tab</dd>
|
||
<dt><kbd>⏎</kbd></dt>
|
||
<dd>Go to active search result</dd>
|
||
<dt><kbd>+</kbd></dt>
|
||
<dd>Expand all sections</dd>
|
||
<dt><kbd>-</kbd></dt>
|
||
<dd>Collapse all sections</dd>
|
||
</dl>
|
||
</div>
|
||
|
||
<div class="infos">
|
||
<h2>Search Tricks</h2>
|
||
|
||
<p>
|
||
Prefix searches with a type followed by a colon (e.g.
|
||
<code>fn:</code>) to restrict the search to a given type.
|
||
</p>
|
||
|
||
<p>
|
||
Accepted types are: <code>fn</code>, <code>mod</code>,
|
||
<code>struct</code>, <code>enum</code>,
|
||
<code>trait</code>, <code>type</code>, <code>macro</code>,
|
||
and <code>const</code>.
|
||
</p>
|
||
|
||
<p>
|
||
Search functions by type signature (e.g.
|
||
<code>vec -> usize</code> or <code>* -> vec</code>)
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</aside>
|
||
|
||
|
||
|
||
<script>
|
||
window.rootPath = "../../";
|
||
window.currentCrate = "ryu";
|
||
</script>
|
||
<script src="../../main.js"></script>
|
||
<script defer src="../../search-index.js"></script>
|
||
</body>
|
||
</html> |