omputeroutput"><span class="identifier">a</span></code></span></dt>
<dd><p>
                  A arbitrary typed constant value, e.g. 0.0, "Hello",
                  or a variable of arbitrary type or a <a class="link" href="../basics.html#spirit.qi.reference.basics.lazy_argument">Lazy
                  Argument</a> that evaluates to an arbitrary type.
                </p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">A</span></code></span></dt>
<dd><p>
                  T