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<title>reverse – Fortran-lang/stdlib</title>
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<h1>reverse
<small>Function</small>
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<h2>public elemental function reverse(string) result(reverse_string)
</h2>
<p>Reverse the character order in the input character variable
(<a href="../page/specs/stdlib_ascii.html#reverse">Specification</a>)</p>
<p>Version: experimental</p>
<h3>Arguments</h3>
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<h3>Return Value
<small>
<span class="anchor" id="variable-reverse_string"></span>
character(len=len)
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<h2><span class="anchor" id="src"></span>Source Code</h2>
<div class="hl codehilite"><pre><span></span><span class="w"> </span><span class="k">elemental function </span><span class="n">reverse</span><span class="p">(</span><span class="n">string</span><span class="p">)</span><span class="w"> </span><span class="k">result</span><span class="p">(</span><span class="n">reverse_string</span><span class="p">)</span>
<span class="w"> </span><span class="kt">character</span><span class="p">(</span><span class="nb">len</span><span class="o">=*</span><span class="p">),</span><span class="w"> </span><span class="k">intent</span><span class="p">(</span><span class="n">in</span><span class="p">)</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">string</span>
<span class="w"> </span><span class="kt">character</span><span class="p">(</span><span class="nb">len</span><span class="o">=</span><span class="nb">len</span><span class="p">(</span><span class="n">string</span><span class="p">))</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">reverse_string</span>
<span class="w"> </span><span class="kt">integer</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">n</span>
<span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="n">string</span><span class="p">)</span>
<span class="w"> </span><span class="k">do </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="n">n</span>
<span class="w"> </span><span class="n">reverse_string</span><span class="p">(</span><span class="n">n</span><span class="o">-</span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="p">:</span><span class="n">n</span><span class="o">-</span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">string</span><span class="p">(</span><span class="n">i</span><span class="p">:</span><span class="n">i</span><span class="p">)</span>
<span class="w"> </span><span class="k">end do</span>
<span class="k"> end function </span><span class="n">reverse</span>
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