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<!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="An interface for casting between machine scalars."><title>NumCast in num - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-fa3bb1812debf86c.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="num" data-themes="" data-resource-suffix="" data-rustdoc-version="1.74.0 (79e9716c9 2023-11-13)" data-channel="1.74.0" data-search-js="search-8be46b629f5f14a8.js" data-settings-js="settings-74424d7eec62a23e.js" ><script src="../static.files/storage-fec3eaa3851e447d.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-c5bd66d33317d69f.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-5d8b3c7633ad77ba.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="logo-container" href="../num/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a></nav><nav class="sidebar"><a class="logo-container" href="../num/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><h2 class="location"><a href="#">NumCast</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.from">from</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-NumCast-for-Wrapping%3CT%3E">Wrapping&lt;T&gt;</a></li><li><a href="#impl-NumCast-for-f32">f32</a></li><li><a href="#impl-NumCast-for-f64">f64</a></li><li><a href="#impl-NumCast-for-i128">i128</a></li><li><a href="#impl-NumCast-for-i16">i16</a></li><li><a href="#impl-NumCast-for-i32">i32</a></li><li><a href="#impl-NumCast-for-i64">i64</a></li><li><a href="#impl-NumCast-for-i8">i8</a></li><li><a href="#impl-NumCast-for-isize">isize</a></li><li><a href="#impl-NumCast-for-u128">u128</a></li><li><a href="#impl-NumCast-for-u16">u16</a></li><li><a href="#impl-NumCast-for-u32">u32</a></li><li><a href="#impl-NumCast-for-u64">u64</a></li><li><a href="#impl-NumCast-for-u8">u8</a></li><li><a href="#impl-NumCast-for-usize">usize</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In num</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Trait <a href="index.html">num</a>::<wbr><a class="trait" href="#">NumCast</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/num_traits/cast.rs.html#661">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub trait NumCast: <a class="trait" href="https://doc.rust-lang.org/1.74.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a> {
// Required method
fn <a href="#tymethod.from" class="fn">from</a>&lt;T&gt;(n: T) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;
<span class="where">where T: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a></span>;
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>An interface for casting between machine scalars.</p>
</div></details><h2 id="required-methods" class="small-section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.from" class="method"><a class="src rightside" href="../src/num_traits/cast.rs.html#674">source</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;T&gt;(n: T) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;<span class="where fmt-newline">where
T: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></summary><div class="docblock"><p>Creates a number from another value that can be converted into
a primitive via the <code>ToPrimitive</code> trait. If the source value cannot be
represented by the target type, then <code>None</code> is returned.</p>
<p>A value can be represented by the target type when it lies within
the range of scalars supported by the target type.
For example, a negative integer cannot be represented by an unsigned
integer type, and an <code>i64</code> with a very high magnitude might not be
convertible to an <code>i32</code>.
On the other hand, conversions with possible precision loss or truncation
are admitted, like an <code>f32</code> with a decimal part to an integer type, or
even a large <code>f64</code> saturating to <code>f32</code> infinity.</p>
</div></details></div><h2 id="foreign-impls" class="small-section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-f64" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#704">source</a><a href="#impl-NumCast-for-f64" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.f64.html">f64</a></h3></section></summary><div class="impl-items"><section id="method.from" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#704">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.f64.html">f64</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-i8" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#697">source</a><a href="#impl-NumCast-for-i8" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i8.html">i8</a></h3></section></summary><div class="impl-items"><section id="method.from-1" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#697">source</a><a href="#method.from-1" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i8.html">i8</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-i32" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#699">source</a><a href="#impl-NumCast-for-i32" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i32.html">i32</a></h3></section></summary><div class="impl-items"><section id="method.from-2" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#699">source</a><a href="#method.from-2" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i32.html">i32</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-u32" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#693">source</a><a href="#impl-NumCast-for-u32" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u32.html">u32</a></h3></section></summary><div class="impl-items"><section id="method.from-3" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#693">source</a><a href="#method.from-3" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u32.html">u32</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-isize" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#702">source</a><a href="#impl-NumCast-for-isize" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.isize.html">isize</a></h3></section></summary><div class="impl-items"><section id="method.from-4" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#702">source</a><a href="#method.from-4" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.isize.html">isize</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-u16" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#692">source</a><a href="#impl-NumCast-for-u16" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u16.html">u16</a></h3></section></summary><div class="impl-items"><section id="method.from-5" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#692">source</a><a href="#method.from-5" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u16.html">u16</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-i16" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#698">source</a><a href="#impl-NumCast-for-i16" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i16.html">i16</a></h3></section></summary><div class="impl-items"><section id="method.from-6" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#698">source</a><a href="#method.from-6" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i16.html">i16</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-usize" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#696">source</a><a href="#impl-NumCast-for-usize" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.usize.html">usize</a></h3></section></summary><div class="impl-items"><section id="method.from-7" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#696">source</a><a href="#method.from-7" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.usize.html">usize</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-u128" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#695">source</a><a href="#impl-NumCast-for-u128" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u128.html">u128</a></h3></section></summary><div class="impl-items"><section id="method.from-8" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#695">source</a><a href="#method.from-8" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u128.html">u128</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-i64" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#700">source</a><a href="#impl-NumCast-for-i64" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i64.html">i64</a></h3></section></summary><div class="impl-items"><section id="method.from-9" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#700">source</a><a href="#method.from-9" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i64.html">i64</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-i128" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#701">source</a><a href="#impl-NumCast-for-i128" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i128.html">i128</a></h3></section></summary><div class="impl-items"><section id="method.from-10" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#701">source</a><a href="#method.from-10" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.i128.html">i128</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-f32" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#703">source</a><a href="#impl-NumCast-for-f32" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.f32.html">f32</a></h3></section></summary><div class="impl-items"><section id="method.from-11" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#703">source</a><a href="#method.from-11" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.f32.html">f32</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-u8" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#691">source</a><a href="#impl-NumCast-for-u8" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u8.html">u8</a></h3></section></summary><div class="impl-items"><section id="method.from-12" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#691">source</a><a href="#method.from-12" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u8.html">u8</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-Wrapping%3CT%3E" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#706">source</a><a href="#impl-NumCast-for-Wrapping%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="struct" href="https://doc.rust-lang.org/1.74.0/core/num/wrapping/struct.Wrapping.html" title="struct core::num::wrapping::Wrapping">Wrapping</a>&lt;T&gt;<span class="where fmt-newline">where
T: <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a>,</span></h3></section></summary><div class="impl-items"><section id="method.from-13" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#707">source</a><a href="#method.from-13" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;U&gt;(n: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.74.0/core/num/wrapping/struct.Wrapping.html" title="struct core::num::wrapping::Wrapping">Wrapping</a>&lt;T&gt;&gt;<span class="where fmt-newline">where
U: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-NumCast-for-u64" class="impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#694">source</a><a href="#impl-NumCast-for-u64" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u64.html">u64</a></h3></section></summary><div class="impl-items"><section id="method.from-14" class="method trait-impl"><a class="src rightside" href="../src/num_traits/cast.rs.html#694">source</a><a href="#method.from-14" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.from" class="fn">from</a>&lt;N&gt;(n: N) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.74.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.74.0/std/primitive.u64.html">u64</a>&gt;<span class="where fmt-newline">where
N: <a class="trait" href="trait.ToPrimitive.html" title="trait num::ToPrimitive">ToPrimitive</a>,</span></h4></section></div></details><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-NumCast-for-Complex%3CT%3E" class="impl"><a class="src rightside" href="../src/num_complex/cast.rs.html#64">source</a><a href="#impl-NumCast-for-Complex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> for <a class="struct" href="struct.Complex.html" title="struct num::Complex">Complex</a>&lt;T&gt;<span class="where fmt-newline">where
T: <a class="trait" href="trait.NumCast.html" title="trait num::NumCast">NumCast</a> + <a class="trait" href="trait.Num.html" title="trait num::Num">Num</a>,</span></h3></section></div><script src="../implementors/num_traits/cast/trait.NumCast.js" data-ignore-extern-crates="std,core,num_complex" async></script></section></div></main></body></html>