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<title> Regular Callable
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<a name="fusion.functional.concepts.reg_callable"></a><a href="reg_callable.html" title=" Regular Callable
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<p>
A non-member-pointer <a href="callable.html" title=" Callable Object">Callable
Object</a> type: A pointer to a function or a class type whose objects
can appear immediately to the left of a function call operator.
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of</a>
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<div class="itemizedlist"><ul type="disc"><li><a href="callable.html" title=" Callable Object">Callable Object</a></li></ul></div>
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<p class="title"><b>Notation</b></p>
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<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd><p>
A possibly const qualified Deferred Callable Object type
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An object or reference to an object of type F
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></tt></span></dt>
<dd><p>
Argument types
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">a1</span>
<span class="special">...</span><span class="identifier">aN</span></tt></span></dt>
<dd><p>
Objects or references to objects with types <tt class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></tt>
</p></dd>
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<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th><p>
Expression
</p></th>
<th><p>
Return Type
</p></th>
<th><p>
Runtime Complexity
</p></th>
</tr></thead>
<tbody><tr>
<td><p>
<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">a1</span><span class="special">,</span>
<span class="special">...</span><span class="identifier">aN</span><span class="special">)</span></tt>
</p></td>
<td><p>
Unspecified
</p></td>
<td><p>
Unspecified
</p></td>
</tr></tbody>
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function pointer types
</li>
<li>
all kinds of function objects
</li>
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<pre class="programlisting"><span class="special">&amp;</span> <span class="identifier">a_free_function</span>
<span class="special">&amp;</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_static_member_function</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;()</span>
<span class="comment">// using namespace boost;
</span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(),</span> <span class="identifier">_1</span><span class="special">,</span> <span class="number">5</span><span class="special">)</span>
<span class="identifier">lambda</span><span class="special">::</span><span class="identifier">_1</span> <span class="special">+=</span> <span class="identifier">lambda</span><span class="special">::</span><span class="identifier">_2</span><span class="special">;</span>
<span class="identifier">fusion</span><span class="special">::</span><a href="../generation/functions/mk_fused_fobj.html" title="
make_fused_function_object"><tt class="computeroutput"><span class="identifier">make_fused_function_object</span></tt></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;())</span>
</pre>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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