118 lines
7.8 KiB
HTML
118 lines
7.8 KiB
HTML
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<title>标准库头文件 <climits></title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_header_climits skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">标准库头文件</span> <climits></h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-header.html">header</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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<p>此头文件原作为 <code><b><limits.h></b></code> 存在于 C 标准库。</p>
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<p>此头文件是<a href="cpp-types.html">类型支持</a>库的一部分，特别是它是 <a href="cpp-types-climits.html">C 数值极限接口</a>的一部分。</p>
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<h3><span class="mw-headline" id=".E5.AE.8F">宏</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><span class="t-lines"><span>CHAR_BIT</span></span></div>
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</div>
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</td>
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<td>字节的位数<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>MB_LEN_MAX</span></span></div>
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</div>
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</td>
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<td>多字节字符的最大字节数<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>CHAR_MIN</span></span></div>
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</div>
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</td>
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span> 的最小值<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>CHAR_MAX</span></span></div>
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</div>
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</td>
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span> 的最大值<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>SCHAR_MIN</span><span>SHRT_MIN</span><span>INT_MIN</span><span>LONG_MIN</span><span>LLONG_MIN</span></span></div>
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<div><span class="t-lines"><span></span><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
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</div>
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</td>
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<td>分别为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">signed</span> <span class="kw4">char</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">short</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">int</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span></span></span> 及 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span> <span class="kw4">long</span></span></span> 的最小值<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>SCHAR_MAX</span><span>SHRT_MAX</span><span>INT_MAX</span><span>LONG_MAX</span><span>LLONG_MAX</span></span></div>
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<div><span class="t-lines"><span></span><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
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</div>
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</td>
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<td>分别为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">signed</span> <span class="kw4">char</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">short</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">int</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span></span></span> 及 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span> <span class="kw4">long</span></span></span> 的最大值<br />
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<span class="t-mark">(宏常量)</span></td>
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</tr>
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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><span class="t-lines"><span>UCHAR_MAX</span><span>USHRT_MAX</span><span>UINT_MAX</span><span>ULONG_MAX</span><span>ULLONG_MAX</span></span></div>
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<div><span class="t-lines"><span></span><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
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</div>
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</td>
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<td>分别为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">char</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">short</span></span></span>、<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">int</span></span></span>、<br />
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<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">long</span></span></span> 及 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span> 的最大值<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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<h3><span class="mw-headline" id=".E6.A6.82.E8.A6.81">概要</span></h3>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="cpp source-cpp">
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<pre class="de1"><span class="co2">#define CHAR_BIT /* 见定义 */</span>
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<span class="co2">#define SCHAR_MIN /* 见定义 */</span>
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<span class="co2">#define SCHAR_MAX /* 见定义 */</span>
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<span class="co2">#define UCHAR_MAX /* 见定义 */</span>
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<span class="co2">#define CHAR_MIN /* 见定义 */</span>
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<span class="co2">#define CHAR_MAX /* 见定义 */</span>
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<span class="co2">#define MB_LEN_MAX /* 见定义 */</span>
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<span class="co2">#define SHRT_MIN /* 见定义 */</span>
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<span class="co2">#define SHRT_MAX /* 见定义 */</span>
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<span class="co2">#define USHRT_MAX /* 见定义 */</span>
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<span class="co2">#define INT_MIN /* 见定义 */</span>
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<span class="co2">#define INT_MAX /* 见定义 */</span>
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<span class="co2">#define UINT_MAX /* 见定义 */</span>
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<span class="co2">#define LONG_MIN /* 见定义 */</span>
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<span class="co2">#define LONG_MAX /* 见定义 */</span>
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<span class="co2">#define ULONG_MAX /* 见定义 */</span>
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<span class="co2">#define LLONG_MIN /* 见定义 */</span>
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<span class="co2">#define LLONG_MAX /* 见定义 */</span>
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<span class="co2">#define ULLONG_MAX /* 见定义 */</span></pre></div>
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