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web/cppreference-zh/chmhelp/c-program-raise.html
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<!DOCTYPE html>
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>raise</title>
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<link rel="stylesheet" href="ext.css" />
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<link rel="stylesheet" href="site_modules.css" />
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</head>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-c_program_raise skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<div id="content"><a id="top"></a>
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<h1 id="firstHeading" class="firstHeading">raise</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="c.html">c</a>‎ | <a href="c-program.html">program</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<table class="t-dcl-begin">
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<tbody>
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<td>
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<div>定义于头文件 <code><signal.h></code></div>
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</td>
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<td></td>
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<td></td>
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<td class="t-dcl-nopad">
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<div><span class="mw-geshi c source-c"><span class="kw4">int</span> raise<span class="br0">(</span> <span class="kw4">int</span> sig <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td class="t-dcl-nopad"></td>
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<td></td>
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<p>发送 <code>sig</code> 给程序。调用以 <span class="t-lc"><a href="c-program-signal.html">signal()</a></span> 指定的信号处理函数。</p>
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<p>若仍未用 <span class="t-lc"><a href="c-program-signal.html">signal()</a></span> 设置用户定义的信号处理策略，则忽略信号还是调用默认处理函数是实现定义的。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<table class="t-par-begin">
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<tr class="t-par">
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<td>sig</td>
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<td>-</td>
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<td>要发送的信号。能为实现定义值或下列值之一：
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-program-SIG_types.html"><span class="t-lines"><span>SIGABRT</span><span>SIGFPE</span><span>SIGILL</span><span>SIGINT</span><span>SIGSEGV</span><span>SIGTERM</span></span></a></div>
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</div>
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</td>
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<td>定义信号类型<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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</table>
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<p><br /></p>
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</td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p>成功时为 <span class="t-c"><span class="mw-geshi c source-c">​<span class="nu0">0</span>​</span></span> ，失败时为非零。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<div class="t-example">
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<div class="t-example-live-link"></div>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="c source-c">
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<pre class="de1"><span class="co2">#include <signal.h></span>
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<span class="co2">#include <stdio.h></span>
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<span class="kw4">void</span> signal_handler<span class="br0">(</span><span class="kw4">int</span> <a href="c-program-signal.html"><span class="kw497">signal</span></a><span class="br0">)</span>
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<span class="br0">{</span>
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<a href="c-io-fprintf.html"><span class="kw850">printf</span></a><span class="br0">(</span><span class="st0">"Received signal %d<span class="es1">\n</span>"</span>, <a href="c-program-signal.html"><span class="kw497">signal</span></a><span class="br0">)</span><span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="kw4">int</span> main<span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>
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<span class="br0">{</span>
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<span class="co1">// 安装信号处理函数。</span>
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<a href="c-program-signal.html"><span class="kw497">signal</span></a><span class="br0">(</span><a href="c-program-SIG_types.html"><span class="kw507">SIGTERM</span></a>, signal_handler<span class="br0">)</span><span class="sy4">;</span>
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<a href="c-io-fprintf.html"><span class="kw850">printf</span></a><span class="br0">(</span><span class="st0">"Sending signal %d<span class="es1">\n</span>"</span>, <a href="c-program-SIG_types.html"><span class="kw507">SIGTERM</span></a><span class="br0">)</span><span class="sy4">;</span>
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raise<span class="br0">(</span><a href="c-program-SIG_types.html"><span class="kw507">SIGTERM</span></a><span class="br0">)</span><span class="sy4">;</span>
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<a href="c-io-fprintf.html"><span class="kw850">printf</span></a><span class="br0">(</span><span class="st0">"Exit main()<span class="es1">\n</span>"</span><span class="br0">)</span><span class="sy4">;</span>
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<span class="br0">}</span></pre></div>
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</div>
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<p>输出：</p>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="text source-text">
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<pre class="de1">Sending signal 15
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Received signal 15
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Exit main()</pre></div>
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</div>
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</div>
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<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">引用</span></h3>
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<div class="t-ref-std-11">
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<ul>
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<li>C11 标准（ISO/IEC 9899:2011）：</li>
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</ul>
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<dl>
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<dd>
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<ul>
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<li>7.14.2.1 The raise function (p: 267)</li>
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</ul>
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</dd>
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</dl>
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<div class="t-ref-std-c99">
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<ul>
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<li>C99 标准（ISO/IEC 9899:1999）：</li>
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</ul>
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<dl>
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<dd>
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<ul>
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<li>7.14.2.1 The raise function (p: 248)</li>
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</ul>
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</dd>
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</dl>
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<div class="t-ref-std-c89">
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<ul>
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<li>C89/C90 标准（ISO/IEC 9899:1990）：</li>
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</ul>
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<dl>
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<dd>
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<ul>
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<li>4.7.2.1 The raise function</li>
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</ul>
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</dd>
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</dl>
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</div>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-program-signal.html"><span class="t-lines"><span>signal</span></span></a></div>
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</div>
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</td>
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<td>为特定的信号设置信号处理函数<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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</table>
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</div>
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</div>
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</div>
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<div class="visualClear"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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