<!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 `Zeroable` trait in crate `core`."> <meta name="keywords" content="rust, rustlang, rust-lang, Zeroable"> <title>core::nonzero::Zeroable - 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> <link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"> </head> <body class="rustdoc trait"> <!--[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='../../core/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a> <p class='location'>Trait Zeroable</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.is_zero">is_zero</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>core</a>::<wbr><a href='index.html'>nonzero</a></p><script>window.sidebarCurrent = {name: 'Zeroable', ty: 'trait', 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"> </div> </form> </nav> <section id='main' class="content"> <h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>core</a>::<wbr><a href='index.html'>nonzero</a>::<wbr><a class="trait" href=''>Zeroable</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version '></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/core/nonzero.rs.html#19-22' title='goto source code'>[src]</a></span></h1> <pre class='rust trait'>pub unsafe trait Zeroable { fn <a href='#tymethod.is_zero' class='fnname'>is_zero</a>(&self) -> bool; }</pre><div class='stability'><div class='stab unstable'><details><summary><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>nonzero </code><a href="https://github.com/rust-lang/rust/issues/27730">#27730</a>)</summary><p>needs an RFC to flesh out the design</p> </details></div></div><div class='docblock'><p>Unsafe trait to indicate what types are usable with the NonZero struct</p> </div> <h2 id='required-methods' class='small-section-header'> Required Methods<a href='#required-methods' class='anchor'></a> </h2> <div class='methods'> <h3 id='tymethod.is_zero' class='method'><span id='is_zero.v' class='invisible'><code>fn <a href='#tymethod.is_zero' class='fnname'>is_zero</a>(&self) -> bool</code></span></h3><div class='stability'><div class='stab unstable'><details><summary><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>nonzero </code><a href="https://github.com/rust-lang/rust/issues/27730">#27730</a>)</summary><p>needs an RFC to flesh out the design</p> </details></div></div><div class='docblock'><p>Whether this value is zero</p> </div></div> <h2 id='implementors' class='small-section-header'> Implementors<a href='#implementors' class='anchor'></a> </h2> <ul class='item-list' id='implementors-list'> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#28-33' title='goto source code'>[src]</a></div><code>impl<T: ?<a class="trait" href="../../core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>> Zeroable for *const T</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#28-33' title='goto source code'>[src]</a></div><code>impl<T: ?<a class="trait" href="../../core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>> Zeroable for *mut T</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for usize</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for u8</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for u16</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for u32</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for u64</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for u128</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for isize</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for i8</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for i16</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for i32</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for i64</code></li> <li><div class='out-of-band'><a class='srclink' href='../../src/core/nonzero.rs.html#41-46' title='goto source code'>[src]</a></div><code>impl Zeroable for i128</code></li> </ul><script type="text/javascript" async src="../../implementors/core/nonzero/trait.Zeroable.js"> </script></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 = "core"; </script> <script src="../../main.js"></script> <script defer src="../../search-index.js"></script> </body> </html>