270 lines
34 KiB
HTML
270 lines
34 KiB
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<title>std::experimental::ranges::all_of, std::experimental::ranges::any_of, std::experimental::ranges::none_of</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::ranges::</span>all_of, <span style="font-size:0.7em; line-height:130%">std::experimental::ranges::</span>any_of, <span style="font-size:0.7em; line-height:130%">std::experimental::ranges::</span>none_of</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-experimental.html">experimental</a>‎ | <a href="cpp-experimental-ranges.html">ranges</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-experimental-ranges-algorithm.html"><experimental/ranges/algorithm></a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S,<br /></span>
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<p> <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,<br />
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> all_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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<td>(1)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,<br /></span>
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<p> <a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><br />
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<a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">></span><br />
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<span class="sy1">></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> all_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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</td>
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<td>(2)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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</tr>
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<tr class="t-dcl t-since-ranges_ts">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S,<br /></span>
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<p> <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,<br />
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> any_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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</td>
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<td>(3)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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</tr>
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<tr class="t-dcl t-since-ranges_ts">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,<br /></span>
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<p> <a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><br />
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<a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">></span><br />
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<span class="sy1">></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> any_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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</td>
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<td>(4)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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</tr>
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<tr class="t-dcl t-since-ranges_ts">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S,<br /></span>
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<p> <span class="kw1">class</span> Proj <span class="sy1">=</span> identity,<br />
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> none_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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</td>
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<td>(5)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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</tr>
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<tr class="t-dcl t-since-ranges_ts">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,<br /></span>
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<p> <a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><br />
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<a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">></span><br />
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<span class="sy1">></span> Pred <span class="sy1">></span><br /></p>
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<span class="kw4">bool</span> none_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span><span class="sy4">;</span></div>
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</td>
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<td>(6)</td>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(范围 TS)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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<div class="t-li1"><span class="t-li">1)</span> 检查一元谓词 <code>pred</code> 是否对范围 <code>[first, last)</code> 中的所有元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">3)</span> 检查一元谓词 <code>pred</code> 是否对范围 <code>[first, last)</code> 中至少一个元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">5)</span> 检查一元谓词 <code>pred</code> 是否不对范围 <code>[first, last)</code> 中任何元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">2,4,6)</span> 同 <span class="t-v">(1,3,5)</span> ，但以 <code>rng</code> 为源范围，如同使用 <code>ranges::begin(rng)</code> 和 <code>ranges::end(rng)</code> 。</div>
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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>first, last</td>
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<td>-</td>
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<td>要检验的元素范围</td>
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</tr>
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<tr class="t-par">
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<td>rng</td>
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<td>-</td>
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<td>要检验的元素范围</td>
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</tr>
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<tr class="t-par">
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<td>pred</td>
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<td>-</td>
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<td>应用到投影后元素的谓词</td>
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</tr>
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<tr class="t-par">
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<td>proj</td>
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<td>-</td>
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<td>应用到元素的投影</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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<div class="t-li1"><span class="t-li">1-2)</span> 若 <code>pred</code> 对范围中所有元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ，否则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。若范围为空则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">3-4)</span> 若 <code>pred</code> 对范围中至少一个元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ，否则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。若范围为空则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">5-6)</span> 若 <code>pred</code> 不对范围中任何元素返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ，否则为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。若范围为空则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 。</div>
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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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<div class="t-li1"><span class="t-li">1-6)</span> 至多应用 <code>last - first</code> 次谓词，应用 <code>last - first</code> 次投影。</div>
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<h3><span class="mw-headline" id=".E5.8F.AF.E8.83.BD.E7.9A.84.E5.AE.9E.E7.8E.B0">可能的实现</span></h3>
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<table class="eq-fun-cpp-table">
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<tr>
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<th>版本一</th>
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</tr>
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<td>
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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="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> all_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">find_if_not</span><span class="br0">(</span>first, last, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</span><span class="br0">)</span> <span class="sy1">==</span> last<span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> all_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">all_of</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>rng<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>rng<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</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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</td>
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</tr>
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<tr>
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<th>版本二</th>
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</tr>
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<tr>
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<td>
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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="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> any_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">find_if</span><span class="br0">(</span>first, last, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</span><span class="br0">)</span> <span class="sy3">!</span><span class="sy1">=</span> last<span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> any_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">any_of</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>rng<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>rng<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</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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</td>
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</tr>
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<tr>
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<th>版本三</th>
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</tr>
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<tr>
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<td>
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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="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-iterator-InputIterator.html"><span class="kw2569">ranges::<span class="me2">InputIterator</span></span></a> I, <a href="cpp-experimental-ranges-iterator-Sentinel.html"><span class="kw2567">ranges::<span class="me2">Sentinel</span></span></a><span class="sy1"><</span>I<span class="sy1">></span> S, <span class="kw1">class</span> Proj <span class="sy1">=</span> identity,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>I, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> none_of<span class="br0">(</span> I first, S last, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">find_if</span><span class="br0">(</span>first, last, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</span><span class="br0">)</span> <span class="sy1">==</span> last<span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="kw1">template</span><span class="sy1"><</span> <a href="cpp-experimental-ranges-range-InputRange.html"><span class="kw2592">ranges::<span class="me2">InputRange</span></span></a> Rng, <span class="kw1">class</span> Proj <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">identity</span>,
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<a href="cpp-experimental-ranges-iterator-IndirectUnaryPredicate.html"><span class="kw2576">ranges::<span class="me2">IndirectUnaryPredicate</span></span></a><span class="sy1"><</span><a href="cpp-experimental-ranges-iterator-projected.html"><span class="kw2597">ranges::<span class="me2">projected</span></span></a><span class="sy1"><</span>ranges<span class="sy4">::</span><span class="me2">iterator_t</span><span class="sy1"><</span>Rng<span class="sy1">></span>, Proj<span class="sy1">>></span> Pred <span class="sy1">></span>
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<span class="kw4">bool</span> none_of<span class="br0">(</span> Rng<span class="sy3">&&</span> rng, Pred pred, Proj proj <span class="sy1">=</span> Proj<span class="br0">{</span><span class="br0">}</span> <span class="br0">)</span>
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<span class="br0">{</span>
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<span class="kw1">return</span> ranges<span class="sy4">::</span><span class="me2">none_of</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>rng<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>rng<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>pred<span class="br0">)</span>, <a href="cpp-utility-functional-ref.html"><span class="kw1069">std::<span class="me2">ref</span></span></a><span class="br0">(</span>proj<span class="br0">)</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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</td>
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</tr>
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</table>
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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="cpp source-cpp">
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<pre class="de1"><span class="co2">#include <vector></span>
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<span class="co2">#include <numeric></span>
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<span class="co2">#include <experimental/ranges/algorithm></span>
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<span class="co2">#include <experimental/ranges/iterator></span>
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<span class="co2">#include <iterator></span>
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<span class="co2">#include <iostream></span>
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<span class="co2">#include <functional></span>
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<span class="kw1">namespace</span> ranges <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">experimental</span><span class="sy4">::</span><span class="me2">ranges</span><span class="sy4">;</span>
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<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
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<span class="br0">{</span>
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<a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1"><</span><span class="kw4">int</span><span class="sy1">></span> v<span class="br0">(</span><span class="nu0">10</span>, <span class="nu0">2</span><span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-algorithm-partial_sum.html"><span class="kw1654">std::<span class="me2">partial_sum</span></span></a><span class="br0">(</span>v.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span>, v.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span>, v.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"Among the numbers: "</span><span class="sy4">;</span>
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ranges<span class="sy4">::</span><span class="me2">copy</span><span class="br0">(</span>v, ranges<span class="sy4">::</span><span class="me2">ostream_iterator</span><span class="sy1"><</span><span class="kw4">int</span><span class="sy1">></span><span class="br0">(</span><a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a>, <span class="st0">" "</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
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<span class="kw1">if</span> <span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">all_of</span><span class="br0">(</span>v.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span>, v.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span>, <span class="br0">[</span><span class="br0">]</span><span class="br0">(</span><span class="kw4">int</span> i<span class="br0">)</span><span class="br0">{</span> <span class="kw1">return</span> i <span class="sy2">%</span> <span class="nu0">2</span> <span class="sy1">==</span> <span class="nu0">0</span><span class="sy4">;</span> <span class="br0">}</span><span class="br0">)</span><span class="br0">)</span> <span class="br0">{</span>
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|
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"All numbers are even<span class="es1">\n</span>"</span><span class="sy4">;</span>
|
|
<span class="br0">}</span>
|
|
<span class="kw1">if</span> <span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">none_of</span><span class="br0">(</span>v, <a href="cpp-utility-functional-bind.html"><span class="kw1052">std::<span class="me2">bind</span></span></a><span class="br0">(</span><a href="cpp-utility-functional-modulus.html"><span class="kw1033">std::<span class="me2">modulus</span></span></a><span class="sy1"><</span><span class="kw4">int</span><span class="sy1">></span><span class="br0">(</span><span class="br0">)</span>, std<span class="sy4">::</span><span class="me2">placeholders</span><span class="sy4">::</span>_1, <span class="nu0">2</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"None of them are odd<span class="es1">\n</span>"</span><span class="sy4">;</span>
|
|
<span class="br0">}</span>
|
|
<span class="kw1">struct</span> DivisibleBy
|
|
<span class="br0">{</span>
|
|
<span class="kw4">const</span> <span class="kw4">int</span> d<span class="sy4">;</span>
|
|
DivisibleBy<span class="br0">(</span><span class="kw4">int</span> n<span class="br0">)</span> <span class="sy4">:</span> d<span class="br0">(</span>n<span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span>
|
|
<span class="kw4">bool</span> operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span><span class="kw4">int</span> n<span class="br0">)</span> <span class="kw4">const</span> <span class="br0">{</span> <span class="kw1">return</span> n <span class="sy2">%</span> d <span class="sy1">==</span> <span class="nu0">0</span><span class="sy4">;</span> <span class="br0">}</span>
|
|
<span class="br0">}</span><span class="sy4">;</span>
|
|
|
|
<span class="kw1">if</span> <span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">any_of</span><span class="br0">(</span>v, DivisibleBy<span class="br0">(</span><span class="nu0">7</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"At least one number is divisible by 7<span class="es1">\n</span>"</span><span class="sy4">;</span>
|
|
<span class="br0">}</span>
|
|
<span class="br0">}</span></pre></div>
|
|
</div>
|
|
<p>输出：</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="text source-text">
|
|
<pre class="de1">Among the numbers: 2 4 6 8 10 12 14 16 18 20
|
|
All numbers are even
|
|
None of them are odd
|
|
At least one number is divisible by 7</pre></div>
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|
</div>
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|
</div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
|
|
<table class="t-dsc-begin">
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="cpp-algorithm-all_any_none_of.html"><span class="t-lines"><span>all_of</span><span>any_of</span><span>none_of</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
|
|
</div>
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|
</td>
|
|
<td>检查谓词是否对范围中所有、任一或无元素为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span><br />
|
|
<span class="t-mark">(函数模板)</span></td>
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</tr>
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</table>
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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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