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<!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 `ctor` crate."><meta name="keywords" content="rust, rustlang, rust-lang, ctor"><title>ctor - 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><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.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='../ctor/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><p class='location'>Crate ctor</p><div class="sidebar-elems"><a id='all-types' href='all.html'><p>See all ctor's items</p></a><p class='location'></p><script>window.sidebarCurrent = {name: 'ctor', ty: 'mod', relpath: '../'};</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"><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="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/ctor/lib.rs.html#1-317' title='goto source code'>[src]</a></span><span class='in-band'>Crate <a class="mod" href=''>ctor</a></span></h1><div class='docblock'><p>Procedural macro for defining global constructor/destructor functions.</p>
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<p>This provides module initialization/teardown functions for Rust (like
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<code>__attribute__((constructor))</code> in C/C++) for Linux, OSX, and Windows via
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the <code>#[ctor]</code> and <code>#[dtor]</code> macros.</p>
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<p>This library works and has been tested for Linux, OSX and Windows. This
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library will also work as expected in both <code>bin</code> and <code>cdylib</code> outputs,
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ie: the <code>ctor</code> and <code>dtor</code> will run at executable or library
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startup/shutdown respectively.</p>
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<p>This library currently requires Rust > <code>1.31.0</code> at a minimum for the
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procedural macro support.</p>
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</div><h2 id='attributes' class='section-header'><a href="#attributes">Attribute Macros</a></h2>
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<table><tr class='module-item'><td><a class="attr" href="attr.ctor.html" title='ctor::ctor attr'>ctor</a></td><td class='docblock-short'><p>Marks a function or static variable as a library/executable constructor.
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This uses OS-specific linker sections to call a specific function at
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load time.</p>
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</td></tr><tr class='module-item'><td><a class="attr" href="attr.dtor.html" title='ctor::dtor attr'>dtor</a></td><td class='docblock-short'><p>Marks a function as a library/executable destructor. This uses OS-specific
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linker sections to call a specific function at termination time.</p>
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