<!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 `ffi` mod in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, ffi"><title>std::os::unix::ffi - Rust</title><link rel="stylesheet" type="text/css" href="../../../../normalize1.35.0.css"><link rel="stylesheet" type="text/css" href="../../../../rustdoc1.35.0.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../../dark1.35.0.css"><link rel="stylesheet" type="text/css" href="../../../../light1.35.0.css" id="themeStyle"><script src="../../../../storage1.35.0.js"></script><noscript><link rel="stylesheet" href="../../../../noscript1.35.0.css"></noscript><link rel="shortcut icon" href="../../../../favicon1.35.0.ico"><style type="text/css">#crate-search{background-image:url("../../../../down-arrow1.35.0.svg");}</style></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='../../../../rust-logo1.35.0.png' alt='logo' width='100'></a><p class='location'>Module ffi</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#traits">Traits</a></li></ul></div><p class='location'><a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a></p><script>window.sidebarCurrent = {name: 'ffi', 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="../../../../brush1.35.0.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../../theme1.35.0.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../../settings.html"><img src="../../../../wheel1.35.0.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/sys/unix/ext/ffi.rs.html#1-38' title='goto source code'>[src]</a></span><span class='in-band'>Module <a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a>::<wbr><a class="mod" href=''>ffi</a></span></h1><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Unix-specific extension to the primitives in the <code>std::ffi</code> module</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">OsString</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">ffi</span>::<span class="ident">OsStringExt</span>;
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="string">b"foo"</span>.<span class="ident">to_vec</span>();
<span class="comment">// OsStringExt::from_vec</span>
<span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">from_vec</span>(<span class="ident">bytes</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">to_str</span>(), <span class="prelude-val">Some</span>(<span class="string">"foo"</span>));
<span class="comment">// OsStringExt::into_vec</span>
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="ident">os_string</span>.<span class="ident">into_vec</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">bytes</span>, <span class="string">b"foo"</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Affi%3A%3AOsString%3B%0Ause%20std%3A%3Aos%3A%3Aunix%3A%3Affi%3A%3AOsStringExt%3B%0A%0Alet%20bytes%20%3D%20b%22foo%22.to_vec()%3B%0A%0A%2F%2F%20OsStringExt%3A%3Afrom_vec%0Alet%20os_string%20%3D%20OsString%3A%3Afrom_vec(bytes)%3B%0Aassert_eq!(os_string.to_str()%2C%20Some(%22foo%22))%3B%0A%0A%2F%2F%20OsStringExt%3A%3Ainto_vec%0Alet%20bytes%20%3D%20os_string.into_vec()%3B%0Aassert_eq!(bytes%2C%20b%22foo%22)%3B%0A%7D">Run</a></pre></div>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">OsStr</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">ffi</span>::<span class="ident">OsStrExt</span>;
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="string">b"foo"</span>;
<span class="comment">// OsStrExt::from_bytes</span>
<span class="kw">let</span> <span class="ident">os_str</span> <span class="op">=</span> <span class="ident">OsStr</span>::<span class="ident">from_bytes</span>(<span class="ident">bytes</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_str</span>.<span class="ident">to_str</span>(), <span class="prelude-val">Some</span>(<span class="string">"foo"</span>));
<span class="comment">// OsStrExt::as_bytes</span>
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="ident">os_str</span>.<span class="ident">as_bytes</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">bytes</span>, <span class="string">b"foo"</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Affi%3A%3AOsStr%3B%0Ause%20std%3A%3Aos%3A%3Aunix%3A%3Affi%3A%3AOsStrExt%3B%0A%0Alet%20bytes%20%3D%20b%22foo%22%3B%0A%0A%2F%2F%20OsStrExt%3A%3Afrom_bytes%0Alet%20os_str%20%3D%20OsStr%3A%3Afrom_bytes(bytes)%3B%0Aassert_eq!(os_str.to_str()%2C%20Some(%22foo%22))%3B%0A%0A%2F%2F%20OsStrExt%3A%3Aas_bytes%0Alet%20bytes%20%3D%20os_str.as_bytes()%3B%0Aassert_eq!(bytes%2C%20b%22foo%22)%3B%0A%7D">Run</a></pre></div>
</div><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
<table><tr class='module-item'><td><a class="trait" href="trait.OsStrExt.html" title='std::os::unix::ffi::OsStrExt trait'>OsStrExt</a></td><td class='docblock-short'><span class="stab portability">Unix</span><p>Platform-specific extensions to <a href="../../../../std/ffi/struct.OsStr.html"><code>OsStr</code></a>.</p>
</td></tr><tr class='module-item'><td><a class="trait" href="trait.OsStringExt.html" title='std::os::unix::ffi::OsStringExt trait'>OsStringExt</a></td><td class='docblock-short'><span class="stab portability">Unix</span><p>Platform-specific extensions to <a href="../../../../std/ffi/struct.OsString.html"><code>OsString</code></a>.</p>
</td></tr></table></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><p>Search multiple things at once by splitting your query with comma (e.g., <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../../../";window.currentCrate = "std";</script><script src="../../../../aliases.js"></script><script src="../../../../main1.35.0.js"></script><script defer src="../../../../search-index.js"></script></body></html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
0c2243f8a1696816431e7210e991fa52
>
files
>
16213
