l constant directly supports the increment/decrement operations within the range of the built-in integral type it wraps. Other arithmetic operations are supported through the external metafunctions.
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<h3>Valid expressions</h3>
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<table border="1">
<tr><th>&nbsp;Expression&nbsp;</th><th>&nbsp;Return type &nbsp;</th></tr>
<tr><td><code>typename n::value_type</code></td><td>An <em>integral type</em> </td></tr>
<tr><td><code>typename n::type</code></td><td>A model of <a href="./Integral_Constant.html">Inte