124 lines
6.4 KiB
HTML
124 lines
6.4 KiB
HTML
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<title>std::linear_congruential_engine<UIntType,a,c,m>::linear_congruential_engine</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::linear_congruential_engine<UIntType,a,c,m>::</span>linear_congruential_engine</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-numeric.html">numeric</a>‎ | <a href="cpp-numeric-random.html">random</a>‎ | <a href="cpp-numeric-random-linear_congruential_engine.html">linear congruential engine</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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<div class="t-page-template" style="">
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<p></p>
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<table class="t-dcl-begin">
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<div><span class="mw-geshi cpp source-cpp">linear_congruential_engine<span class="br0">(</span><span class="br0">)</span> <span class="sy4">:</span> linear_congruential_engine<span class="br0">(</span>default_seed<span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span></span></div>
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</td>
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<td>(1)</td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> linear_congruential_engine<span class="br0">(</span> result_type value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(2)</td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Sseq <span class="sy1">></span><br />
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<span class="kw1">explicit</span> linear_congruential_engine<span class="br0">(</span> Sseq<span class="sy3">&</span> s <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(3)</td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<div><span class="mw-geshi cpp source-cpp">linear_congruential_engine<span class="br0">(</span> <span class="kw4">const</span> linear_congruential_engine<span class="sy3">&</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(4)</td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span><br />
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<span class="t-mark">(隐式声明)</span></td>
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<td></td>
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<td></td>
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<td></td>
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</tbody>
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</table>
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<p>构造伪随机数引擎。</p>
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<div class="t-li1"><span class="t-li">1)</span> 默认构造函数。以 <code>default_seed</code> 播种引擎。
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<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style="">
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<td class="mbox-empty-cell"></td>
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<td class="mbox-text" style="">本节未完成</td>
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<p>仅若 <code>Sseq</code> 符合重载<a href="cpp-named_req-SeedSequence.html"><span style="font-style:italic">种子序列</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SeedSequence)</span></a> ， <span class="t-v">(3)</span> 才参与重载决议。尤其是若 <code>Sseq</code> 可转换为 <code>result_type</code> ，则从候选函数集中排除该重载。</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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<td>value</td>
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<td>-</td>
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<td>用于内部状态初始化的种子值</td>
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</tr>
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<tr class="t-par">
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<td>s</td>
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<td>-</td>
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<td>用于内部状态初始化的种子序列</td>
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<h3><span class="mw-headline" id=".E5.A4.8D.E6.9D.82.E5.BA.A6">复杂度</span></h3>
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<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style="">
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<td class="mbox-empty-cell"></td>
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<td class="mbox-text" style="">本节未完成</td>
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<h3><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A">缺陷报告</span></h3>
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<p>下列更改行为的缺陷报告追溯地应用于以前出版的 C++ 标准。</p>
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<table class="dsctable" style="font-size:0.8em">
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<th>DR</th>
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<th>应用于</th>
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<th>出版时的行为</th>
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<th>正确行为</th>
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<td><a rel="nofollow" class="external text" href="https://wg21.link/P0935R0">P0935R0</a></td>
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<td>C++11</td>
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<td>默认构造函数曾为 explicit</td>
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<td>使之为隐式</td>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div class="t-dsc-member-div">
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<div><a href="cpp-numeric-random-linear_congruential_engine-seed.html"><span class="t-lines"><span>seed</span></span></a></div>
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<div><span class="t-lines"><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>设置引擎的当前状态<br />
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<span class="t-mark">(公开成员函数)</span></td>
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