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<p class='location'>Trait CheckedAdd</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.checked_add">checked_add</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-CheckedAdd">u32</a><a href="#impl-CheckedAdd">isize</a><a href="#impl-CheckedAdd">i8</a><a href="#impl-CheckedAdd">u8</a><a href="#impl-CheckedAdd">i16</a><a href="#impl-CheckedAdd">i32</a><a href="#impl-CheckedAdd">u16</a><a href="#impl-CheckedAdd">u64</a><a href="#impl-CheckedAdd">usize</a><a href="#impl-CheckedAdd">i64</a><a href="#impl-CheckedAdd">Ratio<T></a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>num</a></p><script>window.sidebarCurrent = {name: 'CheckedAdd', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>num</a>::<wbr><a class="trait" href=''>CheckedAdd</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../src/num_traits/ops/checked.rs.html#5-9' title='goto source code'>[src]</a></span></h1>
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<pre class='rust trait'>pub trait CheckedAdd: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a><Self, Output = Self> {
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fn <a href='#tymethod.checked_add' class='fnname'>checked_add</a>(&self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self>;
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}</pre><div class='docblock'><p>Performs addition that returns <code>None</code> instead of wrapping around on
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overflow.</p>
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<h2 id='required-methods' class='small-section-header'>
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Required Methods<a href='#required-methods' class='anchor'></a>
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<div class='methods'>
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<h3 id='tymethod.checked_add' class='method'><span id='checked_add.v' class='invisible'><code>fn <a href='#tymethod.checked_add' class='fnname'>checked_add</a>(&self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self></code></span></h3><div class='docblock'><p>Adds two numbers, checking for overflow. If overflow happens, <code>None</code> is
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returned.</p>
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Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
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</h2>
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<h3 id='impl-CheckedAdd' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code><a href='#impl-CheckedAdd' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add' class="method"><span id='checked_add.v-1' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<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="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/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code><a href='#impl-CheckedAdd-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-1' class="method"><span id='checked_add.v-2' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code><a href='#impl-CheckedAdd-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-2' class="method"><span id='checked_add.v-3' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-3' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code><a href='#impl-CheckedAdd-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-3' class="method"><span id='checked_add.v-4' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-4' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code><a href='#impl-CheckedAdd-4' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-4' class="method"><span id='checked_add.v-5' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-5' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code><a href='#impl-CheckedAdd-5' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-5' class="method"><span id='checked_add.v-6' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<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="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/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-6' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code><a href='#impl-CheckedAdd-6' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-6' class="method"><span id='checked_add.v-7' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-7' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code><a href='#impl-CheckedAdd-7' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-7' class="method"><span id='checked_add.v-8' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-8' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a href='#impl-CheckedAdd-8' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-8' class="method"><span id='checked_add.v-9' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-9' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code><a href='#impl-CheckedAdd-9' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#13-18' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-9' class="method"><span id='checked_add.v-10' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/ops/checked.rs.html#15-17' title='goto source code'>[src]</a></span></h4>
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</div></span><h3 id='impl-CheckedAdd-10' class='impl'><span class='in-band'><code>impl<T> <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> for <a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="../num/trait.Integer.html" title="trait num::Integer">Integer</a> + <a class="trait" href="../num/trait.CheckedAdd.html" title="trait num::CheckedAdd">CheckedAdd</a> + <a class="trait" href="../num/trait.CheckedMul.html" title="trait num::CheckedMul">CheckedMul</a>, </span></code><a href='#impl-CheckedAdd-10' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#678-686' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_add-10' class="method"><span id='checked_add.v-11' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&self, rhs: &<a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T>) -> <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="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#680-685' title='goto source code'>[src]</a></span></h4>
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</div></span>
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<h2 id='implementors' class='small-section-header'>
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Implementors<a href='#implementors' class='anchor'></a>
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<li><div class='out-of-band'><a class='srclink' href='../src/num_bigint/biguint.rs.html#884-889' title='goto source code'>[src]</a></div><code>impl CheckedAdd for <a class="struct" href="../num/struct.BigUint.html" title="struct num::BigUint">BigUint</a></code></li>
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<li><div class='out-of-band'><a class='srclink' href='../src/num_bigint/bigint.rs.html#929-934' title='goto source code'>[src]</a></div><code>impl CheckedAdd for <a class="struct" href="../num/struct.BigInt.html" title="struct num::BigInt">BigInt</a></code></li>
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