diff options
Diffstat (limited to 'libc/types/common/c95/enum.c_void.html')
-rw-r--r-- | libc/types/common/c95/enum.c_void.html | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/libc/types/common/c95/enum.c_void.html b/libc/types/common/c95/enum.c_void.html new file mode 100644 index 0000000..bdf1132 --- /dev/null +++ b/libc/types/common/c95/enum.c_void.html @@ -0,0 +1,117 @@ +<!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 `c_void` enum in crate `libc`."> + <meta name="keywords" content="rust, rustlang, rust-lang, c_void"> + + <title>libc::types::common::c95::c_void - Rust</title> + + <link rel="stylesheet" type="text/css" href="../../../../main.css"> + + <link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"> + +</head> +<body class="rustdoc"> + <!--[if lte IE 8]> + <div class="warning"> + This old browser is unsupported and will most likely display funky + things. + </div> + <![endif]--> + + + + <section class="sidebar"> + <a href='../../../../libc/index.html'><img src='http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='' width='100'></a> + <p class='location'><a href='../../../index.html'>libc</a>::<wbr><a href='../../index.html'>types</a>::<wbr><a href='../index.html'>common</a>::<wbr><a href='index.html'>c95</a></p><script>window.sidebarCurrent = {name: 'c_void', ty: 'enum', relpath: ''};</script><script defer src="sidebar-items.js"></script> + </section> + + <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 enum"> +<h1 class='fqn'><span class='in-band'>Enum <a href='../../../index.html'>libc</a>::<wbr><a href='../../index.html'>types</a>::<wbr><a href='../index.html'>common</a>::<wbr><a href='index.html'>c95</a>::<wbr><a class='enum' href=''>c_void</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 id='src-43' class='srclink' href='../../../../src/libc/lib.rs.html#191-194' title='goto source code'>[src]</a></span></h1> +<pre class='rust enum'>pub enum c_void { + __variant1, + __variant2, +}</pre><div class='docblock'><p>Type used to construct void pointers for use with C.</p> + +<p>This type is only useful as a pointer target. Do not use it as a +return type for FFI functions which have the <code>void</code> return type in +C. Use the unit type <code>()</code> or omit the return type instead.</p> + +<p>For LLVM to recognize the void pointer type and by extension +functions like malloc(), we need to have it represented as i8* in +LLVM bitcode. The enum used here ensures this and prevents misuse +of the "raw" type by only having private variants.. We need two +variants, because the compiler complains about the repr attribute +otherwise.</p> +</div><h2 class='variants'>Variants</h2> +<table><tr><td id='variant.__variant1'><code>__variant1</code></td><td></td></tr><tr><td id='variant.__variant2'><code>__variant2</code></td><td></td></tr></table></section> + <section id='search' class="content hidden"></section> + + <section class="footer"></section> + + <div id="help" class="hidden"> + <div class="shortcuts"> + <h1>Keyboard shortcuts</h1> + <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> + </dl> + </div> + <div class="infos"> + <h1>Search tricks</h1> + <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>typedef</code> (or + <code>tdef</code>). + </p> + <p> + Search functions by type signature (e.g. + <code>vec -> usize</code>) + </p> + </div> + </div> + + + + <script> + window.rootPath = "../../../../"; + window.currentCrate = "libc"; + window.playgroundUrl = "http://play.rust-lang.org/"; + </script> + <script src="../../../../jquery.js"></script> + <script src="../../../../main.js"></script> + <script src="../../../../playpen.js"></script> + <script async src="../../../../search-index.js"></script> +</body> +</html>
\ No newline at end of file |