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<h1>empty<a class="headerlink" href="#empty" title="Permalink to this headline">¶</a></h1>
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<div class="section" id="interface">
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<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline">¶</a></h2>
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<div class="highlight-c++"><div class="highlight"><pre><span class="n">SPROUT_CONSTEXPR</span> <span class="kt">bool</span> <span class="n">empty</span><span class="p">()</span> <span class="k">const</span> <span class="n">SPROUT_NOEXCEPT</span><span class="p">;</span>
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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">true if the array size is 0, false otherwise.</div>
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<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
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<div class="highlight-c++"><div class="highlight"><pre><span class="cp">#include <sprout/string.hpp></span>
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<span class="k">using</span> <span class="k">namespace</span> <span class="n">sprout</span><span class="p">;</span>
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<span class="n">SPROUT_STATIC_CONSTEXPR</span> <span class="k">auto</span> <span class="n">input</span> <span class="o">=</span> <span class="n">string</span><span class="o"><</span><span class="mi">8</span><span class="o">></span><span class="p">(</span><span class="s">""</span><span class="p">);</span>
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<span class="n">static_assert</span><span class="p">(</span><span class="n">input</span><span class="p">.</span><span class="n">empty</span><span class="p">(),</span> <span class="s">"input is empty."</span><span class="p">);</span>
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<div class="section" id="complexity">
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<h2>Complexity<a class="headerlink" href="#complexity" title="Permalink to this headline">¶</a></h2>
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<div class="line">Recursive function invocations in <em>O(1)</em> (constant) depth.</div>
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<h2>Header<a class="headerlink" href="#header" title="Permalink to this headline">¶</a></h2>
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<div class="line"><tt class="docutils literal"><span class="pre">sprout/string/string.hpp</span></tt></div>
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<div class="line">Convenience header: <tt class="docutils literal"><span class="pre">sprout/string.hpp</span></tt></div>
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