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<a href="./Home">MLton 20130715</a>
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<h1>Variant</h1>
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<div class="paragraph"><p>A <em>variant</em> is an arm of a datatype declaration. For example, the
datatype</p></div>
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<div class="content"><div class="highlight"><pre><span class="k">datatype</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">A</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">B</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="n">int</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">C</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="n">real</span><span class="w"></span>
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<div class="paragraph"><p>has three variants: <span class="monospaced">A</span>, <span class="monospaced">B</span>, and <span class="monospaced">C</span>.</p></div>
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