<!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 `pow` fn in crate `num_traits`."> <meta name="keywords" content="rust, rustlang, rust-lang, pow"> <title>num_traits::pow::pow - Rust</title> <link rel="stylesheet" type="text/css" href="../../normalize.css"> <link rel="stylesheet" type="text/css" href="../../rustdoc.css"> <link rel="stylesheet" type="text/css" href="../../main.css"> <link rel="shortcut icon" href="https://rust-num.github.io/num/favicon.ico"> </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"> <a href='../../num_traits/index.html'><img src='https://rust-num.github.io/num/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a> <p class='location'><a href='../index.html'>num_traits</a>::<wbr><a href='index.html'>pow</a></p><script>window.sidebarCurrent = {name: 'pow', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script> </nav> <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'>num_traits</a>::<wbr><a href='index.html'>pow</a>::<wbr><a class="fn" href=''>pow</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/num_traits/pow.rs.html#15-33' title='goto source code'>[src]</a></span></h1> <pre class='rust fn'>pub fn pow<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_traits/identities/trait.One.html" title="trait num_traits::identities::One">One</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Mul.html" title="trait core::ops::arith::Mul">Mul</a><T, Output = T>>(base: T, exp: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> T</pre><div class='docblock'><p>Raises a value to the power of exp, using exponentiation by squaring.</p> <h1 id='example' class='section-header'><a href='#example'>Example</a></h1> <pre class="rust rust-example-rendered"> <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">pow</span>; <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">pow</span>(<span class="number">2i8</span>, <span class="number">4</span>), <span class="number">16</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">pow</span>(<span class="number">6u8</span>, <span class="number">3</span>), <span class="number">216</span>);<a class="test-arrow" target="_blank" href="http://play.integer32.com/?code=extern%20crate%20num_traits%3B%0Afn%20main()%20%7B%0Ause%20num_traits%3A%3Apow%3B%0A%0Aassert_eq!(pow(2i8%2C%204)%2C%2016)%3B%0Aassert_eq!(pow(6u8%2C%203)%2C%20216)%3B%0A%7D">Run</a></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>?</dt> <dd>Show this help dialog</dd> <dt>S</dt> <dd>Focus the search field</dd> <dt>⇤</dt> <dd>Move up in search results</dd> <dt>⇥</dt> <dd>Move down in search results</dd> <dt>⏎</dt> <dd>Go to active search result</dd> <dt>+</dt> <dd>Collapse/expand 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 = "num_traits"; </script> <script src="../../main.js"></script> <script defer src="../../search-index.js"></script> </body> </html>