<?xml version="1.0" encoding="UTF-8"?>
<db:article xmlns:db="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.2" xml:lang="en">
<db:info>
<db:title>IntegralBox Class</db:title>
<db:subtitle>template &lt;<db:link xlink:href="integral.xml">Integral</db:link> T&gt; class IntegralBox</db:subtitle>
<db:productname>Qt</db:productname>
<db:titleabbrev>Test for C++20 concepts and requires clauses</db:titleabbrev>
<db:abstract>
<db:para>A box holding any Integral type.</db:para>
</db:abstract>
</db:info>
<db:variablelist>
<db:varlistentry>
<db:term>Header</db:term>
<db:listitem>
<db:para>concepts.h</db:para>
</db:listitem>
</db:varlistentry>
</db:variablelist>
<db:section xml:id="details">
<db:title>Detailed Description</db:title>
<db:para><db:link xlink:href="integralbox.xml">IntegralBox</db:link> demonstrates the direct concept-on-template-parameter form: the template parameter <db:code role="parameter">T</db:code> is constrained by the Integral concept without an explicit <db:code>requires</db:code> clause.</db:para>
</db:section>
</db:article>
