tant concept represents compile-time integral values. ">IntegralConstant</a></code> is <code>Hashable</code>, by normalizing its value to a <code><a class="el" href="structboost_1_1hana_1_1integral__constant.html" title="Compile-time value of an integral type. ">hana::integral_constant</a></code>. The type of the value held in the normalized <code><a class="el" href="structboost_1_1hana_1_1integral__constant.html" title="Compile-time value of an integral type. ">integral_constant</a></code> is <code>unsigne