<!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 `num` mod in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, num"><title>std::num - 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="../../light.css" id="themeStyle"><script src="../../storage.js"></script><link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"></head><body class="rustdoc mod"><!--[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><a href='../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a><p class='location'>Module num</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li></ul></div><p class='location'><a href='../index.html'>std</a></p><script>window.sidebarCurrent = {name: 'num', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script></div></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"><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Module <a href='../index.html'>std</a>::<wbr><a class="mod" href=''>num</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><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/std/num.rs.html#11-296' title='goto source code'>[src]</a></span></h1><div class='docblock'><p>Additional functionality for numerics.</p>
<p>This module provides some extra types that are useful when doing numerical
work. See the individual documentation for each piece for more information.</p>
</div><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
<table>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroU8.html"
title='struct std::num::NonZeroU8'>NonZeroU8</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroU16.html"
title='struct std::num::NonZeroU16'>NonZeroU16</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroU32.html"
title='struct std::num::NonZeroU32'>NonZeroU32</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroU64.html"
title='struct std::num::NonZeroU64'>NonZeroU64</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroU128.html"
title='struct std::num::NonZeroU128'>NonZeroU128</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.NonZeroUsize.html"
title='struct std::num::NonZeroUsize'>NonZeroUsize</a></td>
<td class='docblock-short'>
<p>An integer that is known not to equal zero.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.ParseFloatError.html"
title='struct std::num::ParseFloatError'>ParseFloatError</a></td>
<td class='docblock-short'>
<p>An error which can be returned when parsing a float.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.ParseIntError.html"
title='struct std::num::ParseIntError'>ParseIntError</a></td>
<td class='docblock-short'>
<p>An error which can be returned when parsing an integer.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Wrapping.html"
title='struct std::num::Wrapping'>Wrapping</a></td>
<td class='docblock-short'>
<p>Provides intentionally-wrapped arithmetic on <code>T</code>.</p>
</td>
</tr>
<tr class='unstable module-item'>
<td><a class="struct" href="struct.TryFromIntError.html"
title='struct std::num::TryFromIntError'>TryFromIntError</a></td>
<td class='docblock-short'>
[<div class='stab unstable'>Experimental</div>] <p>The error type returned when a checked integral type conversion fails.</p>
</td>
</tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
<table>
<tr class=' module-item'>
<td><a class="enum" href="enum.FpCategory.html"
title='enum std::num::FpCategory'>FpCategory</a></td>
<td class='docblock-short'>
<p>A classification of floating point numbers.</p>
</td>
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