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<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator</span><span class="p">,</span> <span class="k">typename</span> <span class="n">T</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="k">typename</span> <span class="n">std</span><span class="o">::</span><span class="n">iterator_traits</span><span class="o">&lt;</span><span class="n">InputIterator</span><span class="o">&gt;::</span><span class="n">difference_type</span>
<span class="n">count</span><span class="p">(</span><span class="n">InputIterator</span> <span class="n">first</span><span class="p">,</span> <span class="n">InputIterator</span> <span class="n">last</span><span class="p">,</span> <span class="n">T</span> <span class="k">const</span><span class="o">&amp;</span> <span class="n">value</span><span class="p">);</span>
</pre></div>
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<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">The number of iterators i in the range [first,last) for which the following corresponding conditions hold: <tt class="docutils literal"><span class="pre">*i</span> <span class="pre">==</span> <span class="pre">value</span></tt>.</div>
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<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/count.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">count</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input</span><span class="p">),</span> <span class="mi">5</span><span class="p">);</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">==</span> <span class="mi">4</span><span class="p">,</span> <span class="s">&quot;counted 4 elements equal to 5 from input.&quot;</span><span class="p">);</span>
</pre></div>
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<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">Exactly <tt class="docutils literal"><span class="pre">last</span> <span class="pre">-</span> <span class="pre">first</span></tt> applications of the predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
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<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/count.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator</span><span class="p">,</span> <span class="k">typename</span> <span class="n">Predicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="k">typename</span> <span class="n">std</span><span class="o">::</span><span class="n">iterator_traits</span><span class="o">&lt;</span><span class="n">InputIterator</span><span class="o">&gt;::</span><span class="n">difference_type</span>
<span class="n">count_if</span><span class="p">(</span><span class="n">InputIterator</span> <span class="n">first</span><span class="p">,</span> <span class="n">InputIterator</span> <span class="n">last</span><span class="p">,</span> <span class="n">Predicate</span> <span class="n">pred</span><span class="p">);</span>
</pre></div>
</div>
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<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">The number of iterators i in the range [first,last) for which the following corresponding conditions hold: <tt class="docutils literal"><span class="pre">pred(*i)</span></tt>.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/count_if.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="cp">#include &lt;sprout/functional.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">count_if</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input</span><span class="p">),</span> <span class="n">bind2nd</span><span class="p">(</span><span class="n">modulus</span><span class="o">&lt;&gt;</span><span class="p">(),</span> <span class="mi">2</span><span class="p">));</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">==</span> <span class="mi">5</span><span class="p">,</span> <span class="s">&quot;counted 5 elements of odd number from input.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">Exactly <tt class="docutils literal"><span class="pre">last</span> <span class="pre">-</span> <span class="pre">first</span></tt> applications of the predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/count_if.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">equal</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">equal</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">equal</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">last2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">equal</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">last2</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="remarks">
<h2>Remarks<a class="headerlink" href="#remarks" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">If last2 was not given in the argument list, it denotes <tt class="docutils literal"><span class="pre">first2</span> <span class="pre">+</span> <span class="pre">(last1</span> <span class="pre">-</span> <span class="pre">first1)</span></tt> below.</div>
</div>
</div>
<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">If <tt class="docutils literal"><span class="pre">last1</span> <span class="pre">-</span> <span class="pre">first1</span> <span class="pre">!=</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2</span></tt>, return false.</div>
<div class="line">Otherwise return true if for every iterator i in the range [first1,last1) the following corresponding conditions hold: <tt class="docutils literal"><span class="pre">*i</span> <span class="pre">==</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">(i</span> <span class="pre">-</span> <span class="pre">first1))</span></tt>, <tt class="docutils literal"><span class="pre">pred(*i,</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">(i</span> <span class="pre">-</span> <span class="pre">first1)))</span></tt>.</div>
<div class="line">Otherwise, returns false.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/equal.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input1</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input2</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">equal</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">begin</span><span class="p">(</span><span class="n">input2</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input2</span><span class="p">));</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s">&quot;input2 equals to input1.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">No applications of the corresponding predicate if InputIterator1 and InputIterator2 meet the requirements of random access iterators and <tt class="docutils literal"><span class="pre">last1</span> <span class="pre">-</span> <span class="pre">first1</span> <span class="pre">!=</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2</span></tt>.</div>
<div class="line">Otherwise, at most <tt class="docutils literal"><span class="pre">min(last1</span> <span class="pre">-</span> <span class="pre">first1,</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2)</span></tt> applications of the corresponding predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/equal.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
</div>
</div>
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<li><a class="reference external" href="#">equal</a><ul>
<li><a class="reference external" href="#interface">Interface</a></li>
<li><a class="reference external" href="#remarks">Remarks</a></li>
<li><a class="reference external" href="#returns">Returns</a></li>
<li><a class="reference external" href="#examples">Examples</a></li>
<li><a class="reference external" href="#complexity">Complexity</a></li>
<li><a class="reference external" href="#header">Header</a></li>
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<li><a class="reference external" href="find_end.html"><em>find_end</em></a></li>
<li><a class="reference external" href="find_first_of.html"><em>find_first_of</em></a></li>
<li><a class="reference external" href="adjacent_find.html"><em>adjacent_find</em></a></li>
<li><tt class="xref docutils literal"><span class="pre">count</span></tt></li>
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@ -124,7 +125,6 @@
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<li><tt class="xref docutils literal"><span class="pre">next_permutation</span></tt></li>
<li><tt class="xref docutils literal"><span class="pre">prev_permutation</span></tt></li>
<li><tt class="xref docutils literal"><span class="pre">is_permutation</span></tt></li>
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<div class="section" id="is-permutation">
<h1>is_permutation<a class="headerlink" href="#is-permutation" title="Permalink to this headline"></a></h1>
<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">is_permutation</span><span class="p">(</span><span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">is_permutation</span><span class="p">(</span><span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">is_permutation</span><span class="p">(</span><span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">last2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span>
<span class="n">is_permutation</span><span class="p">(</span><span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">last2</span><span class="p">)</span> <span class="p">{</span>
</pre></div>
</div>
</div>
<div class="section" id="remarks">
<h2>Remarks<a class="headerlink" href="#remarks" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">If last2 was not given in the argument list, it denotes <tt class="docutils literal"><span class="pre">first2</span> <span class="pre">+</span> <span class="pre">(last1</span> <span class="pre">-</span> <span class="pre">first1)</span></tt> below.</div>
</div>
</div>
<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">If <tt class="docutils literal"><span class="pre">last1</span> <span class="pre">-</span> <span class="pre">first1</span> <span class="pre">!=</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2</span></tt>, return false.</div>
<div class="line">Otherwise return true if there exists a permutation of the elements in the range [first2,first2 + (last1 - first1)), beginning with ForwardIterator2 begin, such that <tt class="docutils literal"><span class="pre">equal(first1,</span> <span class="pre">last1,</span> <span class="pre">begin)</span></tt> returns true or <tt class="docutils literal"><span class="pre">equal(first1,</span> <span class="pre">last1,</span> <span class="pre">begin,</span> <span class="pre">pred)</span></tt> returns true; otherwise, returns false.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/is_permutation.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input1</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input2</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">is_permutation</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">begin</span><span class="p">(</span><span class="n">input2</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input2</span><span class="p">));</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s">&quot;input2 is a permutation of input1.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">No applications of the corresponding predicate if ForwardIterator1 and ForwardIterator2 meet the requirements of random access iterators and <tt class="docutils literal"><span class="pre">last1</span> <span class="pre">-</span> <span class="pre">first1</span> <span class="pre">!=</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2</span></tt>.</div>
<div class="line">Otherwise, exactly distance(first1, last1) applications of the corresponding predicate if <tt class="docutils literal"><span class="pre">equal(first1,</span> <span class="pre">last1,</span> <span class="pre">first2,</span> <span class="pre">last2)</span></tt> would return true if pred was not given in the argument list or <tt class="docutils literal"><span class="pre">equal(first1,</span> <span class="pre">last1,</span> <span class="pre">first2,</span> <span class="pre">last2,</span> <span class="pre">pred)</span></tt> would return true if pred was given in the argument list; otherwise, at worst O(N^2), where N has the value <tt class="docutils literal"><span class="pre">distance(first1,</span> <span class="pre">last1)</span></tt>.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/is_permutation.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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<li><a class="reference external" href="#">is_permutation</a><ul>
<li><a class="reference external" href="#interface">Interface</a></li>
<li><a class="reference external" href="#remarks">Remarks</a></li>
<li><a class="reference external" href="#returns">Returns</a></li>
<li><a class="reference external" href="#examples">Examples</a></li>
<li><a class="reference external" href="#complexity">Complexity</a></li>
<li><a class="reference external" href="#header">Header</a></li>
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<div class="section" id="mismatch">
<h1>mismatch<a class="headerlink" href="#mismatch" title="Permalink to this headline"></a></h1>
<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">sprout</span><span class="o">::</span><span class="n">pair</span><span class="o">&lt;</span><span class="n">InputIterator1</span><span class="p">,</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="n">mismatch</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">sprout</span><span class="o">::</span><span class="n">pair</span><span class="o">&lt;</span><span class="n">InputIterator1</span><span class="p">,</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="n">mismatch</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">;</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">sprout</span><span class="o">::</span><span class="n">pair</span><span class="o">&lt;</span><span class="n">InputIterator1</span><span class="p">,</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="n">mismatch</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">last2</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">InputIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">InputIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">sprout</span><span class="o">::</span><span class="n">pair</span><span class="o">&lt;</span><span class="n">InputIterator1</span><span class="p">,</span> <span class="n">InputIterator2</span><span class="o">&gt;</span>
<span class="n">mismatch</span><span class="p">(</span><span class="n">InputIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">InputIterator1</span> <span class="n">last1</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">InputIterator2</span> <span class="n">last2</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="remarks">
<h2>Remarks<a class="headerlink" href="#remarks" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">If last2 was not given in the argument list, it denotes <tt class="docutils literal"><span class="pre">first2</span> <span class="pre">+</span> <span class="pre">(last1</span> <span class="pre">-</span> <span class="pre">first1)</span></tt> below.</div>
</div>
</div>
<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">A pair of iterators i and j such that <tt class="docutils literal"><span class="pre">j</span> <span class="pre">==</span> <span class="pre">first2</span> <span class="pre">+</span> <span class="pre">(i</span> <span class="pre">-</span> <span class="pre">first1)</span></tt> and i is the first iterator in the range [first1,last1) for which the following corresponding conditions hold:</div>
</div>
<ul class="simple">
<li>j is in the range [first2,last2).</li>
<li><tt class="docutils literal"><span class="pre">!(*i</span> <span class="pre">==</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">(i</span> <span class="pre">-</span> <span class="pre">first1)))</span></tt></li>
<li><tt class="docutils literal"><span class="pre">!pred(*i,</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">(i</span> <span class="pre">-</span> <span class="pre">first1)))</span></tt></li>
</ul>
<div class="line-block">
<div class="line">Returns the pair <tt class="docutils literal"><span class="pre">first1</span> <span class="pre">+</span> <span class="pre">min(last1</span> <span class="pre">-</span> <span class="pre">first1,</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2)</span></tt> and <tt class="docutils literal"><span class="pre">first2</span> <span class="pre">+</span> <span class="pre">min(last1</span> <span class="pre">-</span> <span class="pre">first1,</span> <span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2)</span></tt> if such an iterator i is not found.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/mismatch.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input1</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input2</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">8</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">mismatch</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">begin</span><span class="p">(</span><span class="n">input2</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input2</span><span class="p">));</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span><span class="p">.</span><span class="n">first</span> <span class="o">!=</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">)</span> <span class="o">&amp;&amp;</span> <span class="n">result</span><span class="p">.</span><span class="n">second</span> <span class="o">!=</span> <span class="n">end</span><span class="p">(</span><span class="n">input2</span><span class="p">),</span> <span class="s">&quot;input2 mismatches with input1.&quot;</span><span class="p">);</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span><span class="p">.</span><span class="n">first</span> <span class="o">-</span> <span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">7</span><span class="p">,</span> <span class="s">&quot;a mismatched position is 7.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">At most <tt class="docutils literal"><span class="pre">last1</span> <span class="pre">-</span> <span class="pre">first1</span></tt> applications of the corresponding predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/mismatch.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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<li><a class="reference external" href="#">mismatch</a><ul>
<li><a class="reference external" href="#interface">Interface</a></li>
<li><a class="reference external" href="#remarks">Remarks</a></li>
<li><a class="reference external" href="#returns">Returns</a></li>
<li><a class="reference external" href="#examples">Examples</a></li>
<li><a class="reference external" href="#complexity">Complexity</a></li>
<li><a class="reference external" href="#header">Header</a></li>
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<h1>search<a class="headerlink" href="#search" title="Permalink to this headline"></a></h1>
<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">ForwardIterator1</span>
<span class="n">search</span><span class="p">(</span>
<span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span>
<span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">last2</span>
<span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator1</span><span class="p">,</span> <span class="k">typename</span> <span class="n">ForwardIterator2</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">ForwardIterator1</span>
<span class="n">search</span><span class="p">(</span>
<span class="n">ForwardIterator1</span> <span class="n">first1</span><span class="p">,</span> <span class="n">ForwardIterator1</span> <span class="n">last1</span><span class="p">,</span>
<span class="n">ForwardIterator2</span> <span class="n">first2</span><span class="p">,</span> <span class="n">ForwardIterator2</span> <span class="n">last2</span><span class="p">,</span>
<span class="n">BinaryPredicate</span> <span class="n">pred</span>
<span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="effects">
<h2>Effects<a class="headerlink" href="#effects" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">Finds a subsequence of equal values in a sequence.</div>
</div>
</div>
<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">The first iterator i in the range [first1,last1 - (last2-first2)) such that for any nonnegative integer n less than <tt class="docutils literal"><span class="pre">last2</span> <span class="pre">-</span> <span class="pre">first2</span></tt> the following corresponding conditions hold: <tt class="docutils literal"><span class="pre">*(i</span> <span class="pre">+</span> <span class="pre">n)</span> <span class="pre">==</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">n)</span></tt>, <tt class="docutils literal"><span class="pre">pred(*(i</span> <span class="pre">+</span> <span class="pre">n),</span> <span class="pre">*(first2</span> <span class="pre">+</span> <span class="pre">n))</span></tt>.</div>
<div class="line">Returns first1 if [first2,last2) is empty, otherwise returns last1 if no such iterator is found.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/search.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input1</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input2</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">3</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">search</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">begin</span><span class="p">(</span><span class="n">input2</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input2</span><span class="p">));</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">!=</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="s">&quot;found a subsequence equal to input2 from input1.&quot;</span><span class="p">);</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">-</span> <span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">,</span> <span class="s">&quot;a found position is 2.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">At most <tt class="docutils literal"><span class="pre">(last1</span> <span class="pre">-</span> <span class="pre">first1)</span> <span class="pre">*</span> <span class="pre">(last2</span> <span class="pre">-</span> <span class="pre">first2)</span></tt> applications of the corresponding predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/search.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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<li><a class="reference external" href="#returns">Returns</a></li>
<li><a class="reference external" href="#examples">Examples</a></li>
<li><a class="reference external" href="#complexity">Complexity</a></li>
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<h1>search_n<a class="headerlink" href="#search-n" title="Permalink to this headline"></a></h1>
<div class="section" id="interface">
<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator</span><span class="p">,</span> <span class="k">typename</span> <span class="n">Size</span><span class="p">,</span> <span class="k">typename</span> <span class="n">T</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">ForwardIterator</span>
<span class="n">search_n</span><span class="p">(</span><span class="n">ForwardIterator</span> <span class="n">first</span><span class="p">,</span> <span class="n">ForwardIterator</span> <span class="n">last</span><span class="p">,</span> <span class="n">Size</span> <span class="n">count</span><span class="p">,</span> <span class="n">T</span> <span class="k">const</span><span class="o">&amp;</span> <span class="n">value</span><span class="p">);</span>
<span class="k">template</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">ForwardIterator</span><span class="p">,</span> <span class="k">typename</span> <span class="n">Size</span><span class="p">,</span> <span class="k">typename</span> <span class="n">T</span><span class="p">,</span> <span class="k">typename</span> <span class="n">BinaryPredicate</span><span class="o">&gt;</span>
<span class="kr">inline</span> <span class="n">SPROUT_CONSTEXPR</span> <span class="n">ForwardIterator</span>
<span class="n">search_n</span><span class="p">(</span><span class="n">ForwardIterator</span> <span class="n">first</span><span class="p">,</span> <span class="n">ForwardIterator</span> <span class="n">last</span><span class="p">,</span> <span class="n">Size</span> <span class="n">count</span><span class="p">,</span> <span class="n">T</span> <span class="k">const</span><span class="o">&amp;</span> <span class="n">value</span><span class="p">,</span> <span class="n">BinaryPredicate</span> <span class="n">pred</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="requires">
<h2>Requires<a class="headerlink" href="#requires" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">The type Size shall be convertible to integral type.</div>
</div>
</div>
<div class="section" id="effects">
<h2>Effects<a class="headerlink" href="#effects" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">Finds a subsequence of equal values in a sequence.</div>
</div>
</div>
<div class="section" id="returns">
<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">The first iterator i in the range [first,last-count) such that for any non-negative integer n less than count the following corresponding conditions hold: <tt class="docutils literal"><span class="pre">*(i</span> <span class="pre">+</span> <span class="pre">n)</span> <span class="pre">==</span> <span class="pre">value</span></tt>, <tt class="docutils literal"><span class="pre">pred(*(i</span> <span class="pre">+</span> <span class="pre">n),value)</span></tt>.</div>
<div class="line">Returns last if no such iterator is found.</div>
</div>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline"></a></h2>
<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include &lt;sprout/algorithm/search_n.hpp&gt;</span>
<span class="cp">#include &lt;sprout/array.hpp&gt;</span>
<span class="cp">#include &lt;sprout/container.hpp&gt;</span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input1</span> <span class="o">=</span> <span class="n">array</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="mi">10</span><span class="o">&gt;</span><span class="p">{{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">}};</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">result</span> <span class="o">=</span> <span class="n">sprout</span><span class="o">::</span><span class="n">search_n</span><span class="p">(</span><span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">);</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">!=</span> <span class="n">end</span><span class="p">(</span><span class="n">input1</span><span class="p">),</span> <span class="s">&quot;found a subsequence equal to 4 values of 5 from input1.&quot;</span><span class="p">);</span>
<span class="n">static_assert</span><span class="p">(</span><span class="n">result</span> <span class="o">-</span> <span class="n">begin</span><span class="p">(</span><span class="n">input1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">,</span> <span class="s">&quot;a found position is 3.&quot;</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="complexity">
<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line">At most <tt class="docutils literal"><span class="pre">last</span> <span class="pre">-</span> <span class="pre">first</span></tt> applications of the corresponding predicate.</div>
<div class="line">Recursive function invocations in <em>O(logN)</em> (logarithmic) depth.</div>
</div>
</div>
<div class="section" id="header">
<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline"></a></h2>
<div class="line-block">
<div class="line"><tt class="docutils literal"><span class="pre">sprout/algorithm/search_n.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/algorithm.hpp</span></tt></div>
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