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<li><a class="reference internal" href="#">substr</a><ul>
<li><a class="reference internal" href="#interface">Interface</a></li>
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<li><a class="reference internal" href="#returns">Returns</a></li>
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<div class="section" id="substr">
<h1>substr<a class="headerlink" href="#substr" 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="n">SPROUT_CONSTEXPR</span> <span class="n">basic_string</span> <span class="n">substr</span><span class="p">(</span><span class="n">size_type</span> <span class="n">pos</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">size_type</span> <span class="n">n</span> <span class="o">=</span> <span class="n">npos</span><span class="p">)</span> <span class="k">const</span><span class="p">;</span>
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<div class="line"><tt class="docutils literal"><span class="pre">pos</span> <span class="pre">&lt;=</span> <span class="pre">size()</span></tt>.</div>
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<h2>Returns<a class="headerlink" href="#returns" title="Permalink to this headline"></a></h2>
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<div class="line"><tt class="docutils literal"><span class="pre">basic_string(data()</span> <span class="pre">+</span> <span class="pre">pos,</span> <span class="pre">rlen)</span></tt> where rlen is the smaller of n and <tt class="docutils literal"><span class="pre">size()</span> <span class="pre">-</span> <span class="pre">pos</span></tt>.</div>
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<h2>Throws<a class="headerlink" href="#throws" title="Permalink to this headline"></a></h2>
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<div class="line">std::out_of_range if <tt class="docutils literal"><span class="pre">pos</span> <span class="pre">&gt;</span> <span class="pre">size()</span></tt>.</div>
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<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/string.hpp&gt;</span>
<span class="cp">#include &lt;sprout/assert.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">x</span> <span class="o">=</span> <span class="n">string</span><span class="o">&lt;</span><span class="mi">8</span><span class="o">&gt;</span><span class="p">(</span><span class="s">&quot;homuhomu&quot;</span><span class="p">);</span>
<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">y</span> <span class="o">=</span> <span class="n">x</span><span class="p">.</span><span class="n">substr</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="mi">4</span><span class="p">);</span>
<span class="n">SPROUT_ASSERT_MASG</span><span class="p">(</span><span class="n">y</span> <span class="o">==</span> <span class="s">&quot;homu&quot;</span><span class="p">,</span> <span class="s">&quot;y is substring of x.&quot;</span><span class="p">);</span>
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<div class="line"><tt class="docutils literal"><span class="pre">sprout/string/string.hpp</span></tt></div>
<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/string.hpp</span></tt></div>
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