Full merge from trunk at revision 41356 of entire boost-root tree.

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Beman Dawes
2007-11-25 18:38:02 +00:00
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.fused"></a><a href="fused.html" title="fused">fused</a></h4></div></div></div>
<a name="fusion.functional.adapters.fused.description"></a><h5>
<a name="id659410"></a>
<a href="fused.html#fusion.functional.adapters.fused.description">Description</a>
</h5>
<p>
An unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for <a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a> target functions. It takes a <a href="../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a> that contains the arguments for the target function.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
for a target function object that is const or, if the target function object
is held by value, the adapter is const - these semantics have nothing to
do with the const qualification of a member function, which is referring
to the type of object pointed to by <tt class="literal">this</tt> which is specified
with the first element in the sequence passed to the adapter).
</p>
<p>
If the target function is a pointer to a class members, the corresponding
object can be specified as a reference, pointer, or smart pointer. In case
of the latter, a freestanding <tt class="literal">get_pointer</tt> function must
be defined (Boost provides this function for <tt class="literal">std::auto_ptr</tt>
and <a href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span></tt></a>).
</p>
<p>
/functional/adapter/fused.hpp&gt;
</p>
<a name="fusion.functional.adapters.fused.synopsis"></a><h5>
<a name="id659546"></a>
<a href="fused.html#fusion.functional.adapters.fused.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">fused</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.fused.template_parameters"></a><h5>
<a name="id659626"></a>
<a href="fused.html#fusion.functional.adapters.fused.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
A <a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.fused.model_of"></a><h5>
<a name="id659741"></a>
<a href="fused.html#fusion.functional.adapters.fused.model_of">Model of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">R</span></tt></span></dt>
<dd><p>
A possibly const qualified <a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">r</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">R</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s</span></tt></span></dt>
<dd><p>
A <a href="../../sequence.html" title="Sequence">Sequence</a> of arguments that
are accepted by <tt class="computeroutput"><span class="identifier">r</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.fused.expression_semantics"></a><h5>
<a name="id659961"></a>
<a href="fused.html#fusion.functional.adapters.fused.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;(</span><span class="identifier">r</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">r</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">R</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">r</span></tt> with the
elements in <tt class="computeroutput"><span class="identifier">s</span></tt> as
its arguments.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.fused.example"></a><h5>
<a name="id660216"></a>
<a href="fused.html#fusion.functional.adapters.fused.example">Example</a>
</h5>
<pre class="programlisting">
<span class="identifier">fused</span><span class="special">&lt;</span> <a href="http://www.sgi.com/tech/stl/plus.html" target="_top"><tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">plus</span></tt></a><span class="special">&lt;</span><span class="keyword">long</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">f</span><span class="special">;</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">f</span><span class="special">(</span><a href="../../container/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2l</span><span class="special">))</span> <span class="special">==</span> <span class="number">3l</span><span class="special">);</span>
</pre>
<a name="fusion.functional.adapters.fused.see_also"></a><h5>
<a name="id660392"></a>
<a href="fused.html#fusion.functional.adapters.fused.see_also">See also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="fused_procedure.html" title="fused_procedure"><tt class="computeroutput"><span class="identifier">fused_procedure</span></tt></a></li>
<li><a href="fused_function_object.html" title="fused_function_object"><tt class="computeroutput"><span class="identifier">fused_function_object</span></tt></a></li>
<li><a href="../invocation/functions/invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">invoke</span></tt></a></li>
<li><a href="../../support/deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
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<title>fused_function_object</title>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.fused_function_object"></a><a href="fused_function_object.html" title="fused_function_object">fused_function_object</a></h4></div></div></div>
<a name="fusion.functional.adapters.fused_function_object.description"></a><h5>
<a name="id662089"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.description">Description</a>
</h5>
<p>
An unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for a <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> target function. It takes a <a href="../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a> that contains the arguments for the target function.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
for an target function object that is const or, if the target function
object is held by value, the adapter is const).
</p>
<p>
/functional/adapter/fused_function_object.hpp&gt;
</p>
<a name="fusion.functional.adapters.fused_function_object.synopsis"></a><h5>
<a name="id662171"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">fused_function_object</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.fused_function_object.template_parameters"></a><h5>
<a name="id662255"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
<a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> type
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.fused_function_object.model_of"></a><h5>
<a name="id662372"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">R</span></tt></span></dt>
<dd><p>
A possibly const qualified <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">r</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">R</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s</span></tt></span></dt>
<dd><p>
A <a href="../../sequence.html" title="Sequence">Sequence</a> of arguments that
are accepted by <tt class="computeroutput"><span class="identifier">r</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.fused_function_object.expression_semantics"></a><h5>
<a name="id662592"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused_function_object</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;(</span><span class="identifier">r</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">r</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused_function_object</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">R</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">r</span></tt> with the
elements in <tt class="computeroutput"><span class="identifier">s</span></tt> as
its arguments.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.fused_function_object.example"></a><h5>
<a name="id662849"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">SeqOfSeqs</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Func</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../../algorithm/transformation/metafunctions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">transform</span></tt></a><span class="special">&lt;</span> <span class="identifier">zip_view</span><span class="special">&lt;</span><span class="identifier">SeqOfSeqs</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">,</span>
<span class="identifier">fused_function_object</span><span class="special">&lt;</span><span class="identifier">Func</span> <span class="keyword">const</span> <span class="special">&amp;&gt;</span> <span class="special">&gt;::</span><span class="identifier">type</span>
<span class="identifier">n_ary_transform</span><span class="special">(</span><span class="identifier">SeqOfSeqs</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">Func</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">f</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <a href="../../algorithm/transformation/functions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a><span class="special">(</span><span class="identifier">zip_view</span><span class="special">&lt;</span><span class="identifier">SeqOfSeqs</span><span class="special">&gt;(</span><span class="identifier">s</span><span class="special">),</span>
<span class="identifier">fused_function_object</span><span class="special">&lt;</span><span class="identifier">Func</span> <span class="keyword">const</span> <span class="special">&amp;&gt;(</span><span class="identifier">f</span><span class="special">));</span>
<span class="special">}</span>
<span class="keyword">struct</span> <span class="identifier">sub</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Self</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="identifier">Self</span><span class="special">(</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">T</span><span class="special">)</span> <span class="special">&gt;</span>
<span class="special">{</span> <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">T</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="identifier">T</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">lhs</span> <span class="special">-</span> <span class="identifier">rhs</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">a</span><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">2.0f</span><span class="special">);</span>
<a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">b</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">1.5f</span><span class="special">);</span>
<a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">c</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">0.5f</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">c</span> <span class="special">==</span> <span class="identifier">n_ary_transform</span><span class="special">(</span><a href="../../container/generation/functions/vector_tie.html" title="vector_tie"><tt class="computeroutput"><span class="identifier">vector_tie</span></tt></a><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">),</span> <span class="identifier">sub</span><span class="special">()));</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.fused_function_object.see_also"></a><h5>
<a name="id663907"></a>
<a href="fused_function_object.html#fusion.functional.adapters.fused_function_object.see_also">See
also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="fused.html" title="fused"><tt class="computeroutput"><span class="identifier">fused</span></tt></a></li>
<li><a href="fused_procedure.html" title="fused_procedure"><tt class="computeroutput"><span class="identifier">fused_procedure</span></tt></a></li>
<li><a href="../invocation/functions/invoke_fobj.html" title="
invoke_function_object"><tt class="computeroutput"><span class="identifier">invoke_function_object</span></tt></a></li>
<li><a href="../../support/deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.fused_procedure"></a><a href="fused_procedure.html" title="fused_procedure">fused_procedure</a></h4></div></div></div>
<a name="fusion.functional.adapters.fused_procedure.description"></a><h5>
<a name="id660525"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.description">Description</a>
</h5>
<p>
An unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for <a href="../concepts/callable.html" title=" Callable Object">Callable
Object</a> target functions. It takes a <a href="../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a> that contains the arguments for the target function.
</p>
<p>
The result is discared and the adapter's return type is <tt class="computeroutput"><span class="keyword">void</span></tt>.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
for a target function object that is const or, if the target function object
is held by value, the adapter is const - these semantics have nothing to
do with the const qualification of a member function, which is referring
to the type of object pointed to by <tt class="literal">this</tt> which is specified
with the first element in the sequence passed to the adapter).
</p>
<p>
If the target function is a pointer to a members function, the corresponding
object can be specified as a reference, pointer, or smart pointer. In case
of the latter, a freestanding <tt class="literal">get_pointer</tt> function must
be defined (Boost provides this function for <tt class="literal">std::auto_ptr</tt>
and <a href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span></tt></a>).
</p>
<p>
The target function must not be a pointer to a member object (dereferencing
such a pointer without returning anything does not make sense, so this
case is not implemented).
</p>
<p>
/functional/adapter/fused_procedure.hpp&gt;
</p>
<a name="fusion.functional.adapters.fused_procedure.synopsis"></a><h5>
<a name="id660694"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">fused_procedure</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.fused_procedure.template_parameters"></a><h5>
<a name="id660775"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
<a href="../concepts/callable.html" title=" Callable Object">Callable Object</a>
type
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.fused_procedure.model_of"></a><h5>
<a name="id660890"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">R</span></tt></span></dt>
<dd><p>
A possibly const qualified <a href="../concepts/callable.html" title=" Callable Object">Callable
Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">r</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">R</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s</span></tt></span></dt>
<dd><p>
A <a href="../../sequence.html" title="Sequence">Sequence</a> of arguments that
are accepted by <tt class="computeroutput"><span class="identifier">r</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.fused_procedure.expression_semantics"></a><h5>
<a name="id661110"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused_procedure</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;(</span><span class="identifier">r</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">r</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">fused_procedure</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">R</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">r</span></tt> with the
elements in <tt class="computeroutput"><span class="identifier">s</span></tt> as
its arguments.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.fused_procedure.example"></a><h5>
<a name="id661367"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">SequenceOfSequences</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Func</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="identifier">n_ary_for_each</span><span class="special">(</span><span class="identifier">SequenceOfSequences</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">Func</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">f</span><span class="special">)</span>
<span class="special">{</span>
<a href="../../algorithm/iteration/functions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><a href="../../view/zip_view.html" title="zip_view"><tt class="computeroutput"><span class="identifier">zip_view</span></tt></a><span class="special">&lt;</span><span class="identifier">SequenceOfSequences</span><span class="special">&gt;(</span><span class="identifier">s</span><span class="special">),</span>
<span class="identifier">fused_procedure</span><span class="special">&lt;</span><span class="identifier">Func</span> <span class="keyword">const</span> <span class="special">&amp;&gt;(</span><span class="identifier">f</span><span class="special">));</span>
<span class="special">}</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">a</span><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">2.0f</span><span class="special">);</span>
<a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">b</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">1.5f</span><span class="special">);</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lambda</span><span class="special">;</span>
<span class="identifier">n_ary_for_each</span><span class="special">(</span><a href="../../container/generation/functions/vector_tie.html" title="vector_tie"><tt class="computeroutput"><span class="identifier">vector_tie</span></tt></a><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">),</span> <span class="identifier">_1</span> <span class="special">-=</span> <span class="identifier">_2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">a</span> <span class="special">==</span> <a href="../../container/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">0.5f</span><span class="special">));</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.fused_procedure.see_also"></a><h5>
<a name="id661975"></a>
<a href="fused_procedure.html#fusion.functional.adapters.fused_procedure.see_also">See
also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="fused.html" title="fused"><tt class="computeroutput"><span class="identifier">fused</span></tt></a></li>
<li><a href="fused_function_object.html" title="fused_function_object"><tt class="computeroutput"><span class="identifier">fused_function_object</span></tt></a></li>
<li><a href="../invocation/functions/invoke_proc.html" title="
invoke_procedure"><tt class="computeroutput"><span class="identifier">invoke_procedure</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.unfused_generic"></a><a href="unfused_generic.html" title="unfused_generic">unfused_generic</a></h4></div></div></div>
<a name="fusion.functional.adapters.unfused_generic.description"></a><h5>
<a name="id664042"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.description">Description</a>
</h5>
<p>
An n-ary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for an unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> target function. When called, its arguments are
bundled to a <a href="../../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> of references that is passed to the target function.
Non-const LValue arguments are transported as references to non-const,
otherwise references to const are used.
</p>
<div class="sidebar"><p>
<span class="inlinemediaobject"><img src="../../../images/tip.png" alt="tip"></span> Detecting mutable LValues on a per-argument basis
is currently a compile time expensive operation (see <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1385.htm" target="_top">The
Forwarding Problem</a> for details). Therefore, there are two, lightweight
and more restricted variants of this class template, <a href="unfused_lvalue_args.html" title="unfused_lvalue_args"><tt class="computeroutput"><span class="identifier">unfused_lvalue_args</span></tt></a> and <a href="unfused_rvalue_args.html" title="unfused_rvalue_args"><tt class="computeroutput"><span class="identifier">unfused_rvalue_args</span></tt></a>.
</p></div>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
if the target function object is const - or, in case the target function
object is held by value, the adapter is const).
</p>
<p>
/functional/adapter/unfused_generic.hpp&gt;
</p>
<a name="fusion.functional.adapters.unfused_generic.synopsis"></a><h5>
<a name="id664199"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">unfused_generic</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.unfused_generic.template_parameters"></a><h5>
<a name="id664280"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
An unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_generic.model_of"></a><h5>
<a name="id664396"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd><p>
A possibly const qualified, unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">F</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">UG</span></tt></span></dt>
<dd><p>
The type <tt class="computeroutput"><span class="identifier">unfused_generic</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">ug</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">UG</span></tt>,
initialized with <tt class="computeroutput"><span class="identifier">f</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt></span></dt>
<dd><p>
Arguments to <tt class="computeroutput"><span class="identifier">ug</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.unfused_generic.expression_semantics"></a><h5>
<a name="id664664"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UG</span><span class="special">(</span><span class="identifier">f</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UG</span><span class="special">()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">F</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">ug</span><span class="special">(</span><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">f</span></tt> with a
<a href="../../sequence.html" title="Sequence">Sequence</a> that contains references
to the arguments <tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt>.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_generic.example"></a><h5>
<a name="id664930"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">fused_bound_1st</span>
<span class="special">{</span>
<span class="keyword">typename</span> <span class="identifier">traits</span><span class="special">::</span><span class="identifier">deduce</span><span class="special">&lt;</span><span class="identifier">Function</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">fnc_deferred</span><span class="special">;</span>
<span class="keyword">typename</span> <span class="identifier">traits</span><span class="special">::</span><span class="identifier">deduce</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">xxx_bound</span><span class="special">;</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="identifier">fused_bound_1st</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">deferred</span><span class="special">,</span> <span class="identifier">T</span> <span class="identifier">bound</span><span class="special">)</span>
<span class="special">:</span> <span class="identifier">fnc_deferred</span><span class="special">(</span><span class="identifier">deferred</span><span class="special">),</span> <span class="identifier">xxx_bound</span><span class="special">(</span><span class="identifier">bound</span><span class="special">)</span>
<span class="special">{</span> <span class="special">}</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Self</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="identifier">Self</span><span class="special">(</span><span class="identifier">Seq</span><span class="special">)</span> <span class="special">&gt;</span>
<span class="special">:</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke</span><span class="special">&lt;</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">push_front</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">&gt;::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">&gt;</span>
<span class="special">{</span> <span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">Seq</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">invoke</span><span class="special">(</span><span class="identifier">fnc_deferred</span><span class="special">,</span> <span class="identifier">push_front</span><span class="special">(</span><span class="identifier">s</span><span class="special">,</span><span class="identifier">xxx_bound</span><span class="special">));</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">unfused_generic</span><span class="special">&lt;</span> <span class="identifier">fused_bound_1st</span><span class="special">&lt;</span><span class="identifier">Function</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="identifier">bind_1st</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">x</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">unfused_generic</span><span class="special">&lt;</span> <span class="identifier">fused_bound_1st</span><span class="special">&lt;</span><span class="identifier">Function</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&gt;(</span>
<span class="identifier">fused_bound_1st</span><span class="special">&lt;</span><span class="identifier">Function</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">f</span><span class="special">,</span><span class="identifier">x</span><span class="special">)</span> <span class="special">);</span>
<span class="special">}</span>
<span class="keyword">int</span> <span class="identifier">test_func</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">int</span> <span class="identifier">b</span><span class="special">,</span> <span class="keyword">int</span> <span class="identifier">c</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">a</span><span class="special">+</span><span class="identifier">b</span><span class="special">+</span><span class="identifier">c</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">bind_1st</span><span class="special">(&amp;</span> <span class="identifier">test_func</span><span class="special">,</span><span class="number">3</span><span class="special">)(-</span><span class="number">2</span><span class="special">,-</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="number">0</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">bind_1st</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">plus</span><span class="special">&lt;</span><span class="keyword">float</span><span class="special">&gt;(),</span> <span class="number">1</span><span class="special">)(</span><span class="number">0.5f</span><span class="special">)</span> <span class="special">==</span> <span class="number">1.5f</span><span class="special">);</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.unfused_generic.see_also"></a><h5>
<a name="id666326"></a>
<a href="unfused_generic.html#fusion.functional.adapters.unfused_generic.see_also">See
also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="unfused_lvalue_args.html" title="unfused_lvalue_args"><tt class="computeroutput"><span class="identifier">unfused_lvalue_args</span></tt></a></li>
<li><a href="unfused_rvalue_args.html" title="unfused_rvalue_args"><tt class="computeroutput"><span class="identifier">unfused_rvalue_args</span></tt></a></li>
<li><a href="unfused_typed.html" title="unfused_typed"><tt class="computeroutput"><span class="identifier">unfused_typed</span></tt></a></li>
<li><a href="../../support/deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li>
<li><a href="../../support/deduce_sequence.html" title="deduce_sequence"><tt class="computeroutput"><span class="identifier">deduce_sequence</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.unfused_lvalue_args"></a><a href="unfused_lvalue_args.html" title="unfused_lvalue_args">unfused_lvalue_args</a></h4></div></div></div>
<a name="fusion.functional.adapters.unfused_lvalue_args.description"></a><h5>
<a name="id666484"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.description">Description</a>
</h5>
<p>
An n-ary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for an unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> target function. When called, its arguments are
bundled to a <a href="../../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> of references that is passed to the target function
object. Only LValue arguments are accepted.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
if the target function object is const - or, in case the target function
object is held by value, the adapter is const).
</p>
<p>
/functional/adapter/unfused_lvalue_args.hpp&gt;
</p>
<a name="fusion.functional.adapters.unfused_lvalue_args.synopsis"></a><h5>
<a name="id666568"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">unfused_lvalue_args</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.unfused_lvalue_args.template_parameters"></a><h5>
<a name="id666650"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
A unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_lvalue_args.model_of"></a><h5>
<a name="id666765"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd><p>
A possibly const qualified, unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">F</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">UL</span></tt></span></dt>
<dd><p>
The type <tt class="computeroutput"><span class="identifier">unfused_lvalue_args</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">ul</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">UL</span></tt>,
initialized with <tt class="computeroutput"><span class="identifier">f</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt></span></dt>
<dd><p>
Arguments to <tt class="computeroutput"><span class="identifier">ul</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.unfused_lvalue_args.expression_semantics"></a><h5>
<a name="id667035"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UL</span><span class="special">(</span><span class="identifier">f</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UL</span><span class="special">()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">F</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">ul</span><span class="special">(</span><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">f</span></tt> with a
<a href="../../sequence.html" title="Sequence">Sequence</a> that contains references
to the arguments <tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt>.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_lvalue_args.example"></a><h5>
<a name="id667302"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">fused_incrementer</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<a href="../../algorithm/iteration/functions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><span class="identifier">s</span><span class="special">,++</span><span class="identifier">boost</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="special">}</span>
<span class="special">};</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">unfused_lvalue_args</span><span class="special">&lt;</span><span class="identifier">fused_incrementer</span><span class="special">&gt;</span> <span class="identifier">increment</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">2</span><span class="special">;</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="char">'X'</span><span class="special">;</span>
<span class="identifier">increment</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">a</span> <span class="special">==</span> <span class="number">3</span> <span class="special">&amp;&amp;</span> <span class="identifier">b</span> <span class="special">==</span> <span class="char">'Y'</span><span class="special">);</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.unfused_lvalue_args.see_also"></a><h5>
<a name="id667801"></a>
<a href="unfused_lvalue_args.html#fusion.functional.adapters.unfused_lvalue_args.see_also">See
also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="unfused_rvalue_args.html" title="unfused_rvalue_args"><tt class="computeroutput"><span class="identifier">unfused_rvalue_args</span></tt></a></li>
<li><a href="unfused_generic.html" title="unfused_generic"><tt class="computeroutput"><span class="identifier">unfused_generic</span></tt></a></li>
<li><a href="unfused_typed.html" title="unfused_typed"><tt class="computeroutput"><span class="identifier">unfused_typed</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.unfused_rvalue_args"></a><a href="unfused_rvalue_args.html" title="unfused_rvalue_args">unfused_rvalue_args</a></h4></div></div></div>
<a name="fusion.functional.adapters.unfused_rvalue_args.description"></a><h5>
<a name="id667915"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.description">Description</a>
</h5>
<p>
An n-ary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for an unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> target function. When called, its arguments are
bundled to a <a href="../../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> of references that is passed to the target function
object. All referenced objects in the sequence are const qualified.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
if the target function object is const - or, in case the target function
object is held by value, the adapter is const).
</p>
<p>
/functional/adapter/unfused_rvalue_args.hpp&gt;
</p>
<a name="fusion.functional.adapters.unfused_rvalue_args.synopsis"></a><h5>
<a name="id668000"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Function</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">unfused_rvalue_args</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.unfused_rvalue_args.template_parameters"></a><h5>
<a name="id668081"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
A unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_rvalue_args.model_of"></a><h5>
<a name="id668197"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd><p>
A possibly const qualified, unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">F</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">UR</span></tt></span></dt>
<dd><p>
The type <tt class="computeroutput"><span class="identifier">unfused_rvalue_args</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">ur</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">UR</span></tt>,
initialized with <tt class="computeroutput"><span class="identifier">f</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt></span></dt>
<dd><p>
Arguments to <tt class="computeroutput"><span class="identifier">ur</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.unfused_rvalue_args.expression_semantics"></a><h5>
<a name="id668467"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UR</span><span class="special">(</span><span class="identifier">f</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UR</span><span class="special">()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">F</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">ur</span><span class="special">(</span><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">f</span></tt> with a
<a href="../../sequence.html" title="Sequence">Sequence</a> that contains references
to the arguments <tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt>.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_rvalue_args.example"></a><h5>
<a name="id668734"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">sequence_printer</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">s</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">unfused_rvalue_args</span><span class="special">&lt;</span><span class="identifier">sequence_printer</span><span class="special">&gt;</span> <span class="identifier">print</span><span class="special">;</span>
<span class="identifier">print</span><span class="special">(</span><span class="number">24</span><span class="special">,</span><span class="string">"bottles of beer in"</span><span class="special">,</span><span class="char">'a'</span><span class="special">,</span><span class="string">"box."</span><span class="special">);</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.unfused_rvalue_args.see_also"></a><h5>
<a name="id669131"></a>
<a href="unfused_rvalue_args.html#fusion.functional.adapters.unfused_rvalue_args.see_also">See
also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="unfused_lvalue_args.html" title="unfused_lvalue_args"><tt class="computeroutput"><span class="identifier">unfused_lvalue_args</span></tt></a></li>
<li><a href="unfused_generic.html" title="unfused_generic"><tt class="computeroutput"><span class="identifier">unfused_generic</span></tt></a></li>
<li><a href="unfused_typed.html" title="unfused_typed"><tt class="computeroutput"><span class="identifier">unfused_typed</span></tt></a></li>
<li><a href="../../support/deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li>
<li><a href="../../support/deduce_sequence.html" title="deduce_sequence"><tt class="computeroutput"><span class="identifier">deduce_sequence</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.adapters.unfused_typed"></a><a href="unfused_typed.html" title="unfused_typed">unfused_typed</a></h4></div></div></div>
<a name="fusion.functional.adapters.unfused_typed.description"></a><h5>
<a name="id669285"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.description">Description</a>
</h5>
<p>
An n-ary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> adapter template for an unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> target function. When called, its arguments are
bundled to a <a href="../../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> that is passed to the target function object.
</p>
<p>
The call operators of esulting function objects are strictly typed (in
other words, non-templatized) with the types from a <a href="../../sequence.html" title="Sequence">Sequence</a>.
</p>
<p>
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of <tt class="literal">operator()</tt> can be used
if the target function object is const - or, in case the target function
object is held by value, the adapter is const).
</p>
<div class="sidebar"><p>
<span class="inlinemediaobject"><img src="../../../images/note.png" alt="note"></span> For Microsoft Visual C++ 7.1 (Visual Studio 2003)
the detection of the Function Object's const qualification easily causes
an internal error. Therefore the adapter is always treated as if it was
const.
</p></div>
<div class="sidebar"><p>
<span class="inlinemediaobject"><img src="../../../images/tip.png" alt="tip"></span> If the type sequence passed to this template contains
non-reference elements, the element is copied only once - the call operator's
signature is optimized automatically to avoid by-value parameters.
</p></div>
<p>
/functional/adapter/unfused_typed.hpp&gt;
</p>
<a name="fusion.functional.adapters.unfused_typed.synopsis"></a><h5>
<a name="id669441"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">unfused_typed</span><span class="special">;</span>
</pre>
<a name="fusion.functional.adapters.unfused_typed.template_parameters"></a><h5>
<a name="id669539"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.template_parameters">Template
parameters</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Function</span></tt>
</p>
</td>
<td>
<p>
A unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A <a href="../../sequence.html" title="Sequence">Sequence</a>
</p>
</td>
<td>
<p>
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.functional.adapters.unfused_typed.model_of"></a><h5>
<a name="id669697"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.model_of">Model
of</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a></li>
<li><a href="../concepts/def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd><p>
A possibly const qualified, unary <a href="../concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> type or reference type thereof
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd><p>
An object convertible to <tt class="computeroutput"><span class="identifier">F</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">S</span></tt></span></dt>
<dd><p>
A <a href="../../sequence.html" title="Sequence">Sequence</a> of parameter types
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">UT</span></tt></span></dt>
<dd><p>
The type <tt class="computeroutput"><span class="identifier">unfused_typed</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span><span class="identifier">S</span><span class="special">&gt;</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">ut</span></tt></span></dt>
<dd><p>
An instance of <tt class="computeroutput"><span class="identifier">UT</span></tt>,
initialized with <tt class="computeroutput"><span class="identifier">f</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt></span></dt>
<dd><p>
Arguments to <tt class="computeroutput"><span class="identifier">ut</span></tt>, convertible
to the types in <tt class="computeroutput"><span class="identifier">S</span></tt>
</p></dd>
</dl>
</div>
<a name="fusion.functional.adapters.unfused_typed.expression_semantics"></a><h5>
<a name="id670021"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
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<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
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<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UT</span><span class="special">(</span><span class="identifier">f</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, initializes the target
function with <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">UT</span><span class="special">()</span></tt>
</p>
</td>
<td>
<p>
Creates a fused function as described above, attempts to use <tt class="computeroutput"><span class="identifier">F</span></tt>'s default constructor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">ut</span><span class="special">(</span><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Calls <tt class="computeroutput"><span class="identifier">f</span></tt> with an
instance of <tt class="computeroutput"><span class="identifier">S</span></tt> (or
a subsequence of <tt class="computeroutput"><span class="identifier">S</span></tt>
starting at the first element, if fewer arguments are given and
the overload hasn't been disabled) initialized with <tt class="computeroutput"><span class="identifier">a0</span></tt>...<tt class="computeroutput"><span class="identifier">aN</span></tt>.
</p>
</td>
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</table></div>
<a name="fusion.functional.adapters.unfused_typed.example"></a><h5>
<a name="id670305"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">add_assign</span> <span class="comment">// applies operator+=
</span><span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">result_type</span><span class="special">;</span> <span class="comment">// for simplicity
</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="special">&amp;</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="identifier">lhs</span> <span class="special">+=</span> <span class="identifier">rhs</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Tie</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">fused_parallel_adder</span>
<span class="special">{</span>
<span class="identifier">Tie</span> <span class="identifier">tie_dest</span><span class="special">;</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="keyword">explicit</span> <span class="identifier">fused_parallel_adder</span><span class="special">(</span><span class="identifier">Tie</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">dest</span><span class="special">)</span>
<span class="special">:</span> <span class="identifier">tie_dest</span><span class="special">(</span><span class="identifier">dest</span><span class="special">)</span>
<span class="special">{</span> <span class="special">}</span>
<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">result_type</span><span class="special">;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="identifier">for_each</span><span class="special">(</span> <span class="identifier">zip</span><span class="special">(</span><span class="identifier">tie_dest</span><span class="special">,</span><span class="identifier">s</span><span class="special">),</span> <span class="identifier">fused</span><span class="special">&lt;</span><span class="identifier">add_assign</span><span class="special">&gt;()</span> <span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="comment">// accepts a tie and creates a typed function object from it
</span><span class="keyword">struct</span> <span class="identifier">fused_parallel_adder_maker</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Self</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="identifier">Self</span><span class="special">(</span><span class="identifier">Seq</span><span class="special">)</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">seq</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">unfused_typed</span><span class="special">&lt;</span> <span class="identifier">fused_parallel_adder</span><span class="special">&lt;</span><span class="identifier">seq</span><span class="special">&gt;,</span>
<span class="keyword">typename</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">transform</span><span class="special">&lt;</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">remove_reference</span><span class="special">&lt;</span><span class="identifier">_</span><span class="special">&gt;</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">&gt;</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">Seq</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">tie</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="keyword">typename</span> <span class="identifier">result</span><span class="special">&lt;</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">Seq</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span><span class="special">(</span>
<span class="identifier">fused_parallel_adder</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">&gt;(</span><span class="identifier">tie</span><span class="special">)</span> <span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="identifier">unfused_lvalue_args</span><span class="special">&lt;</span><span class="identifier">fused_parallel_adder_maker</span><span class="special">&gt;</span> <span class="identifier">parallel_add</span><span class="special">;</span>
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
<span class="special">{</span>
<span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">2</span><span class="special">;</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="char">'X'</span><span class="special">;</span>
<span class="comment">// the second call is strictly typed with the types deduced from the
</span> <span class="comment">// first call
</span> <span class="identifier">parallel_add</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">)(</span><span class="number">3</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">parallel_add</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">)(</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">parallel_add</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">)();</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">a</span> <span class="special">==</span> <span class="number">8</span> <span class="special">&amp;&amp;</span> <span class="identifier">b</span> <span class="special">==</span> <span class="char">'Z'</span><span class="special">);</span>
<span class="special">}</span>
</pre>
<a name="fusion.functional.adapters.unfused_typed.see_also"></a><h5>
<a name="id671795"></a>
<a href="unfused_typed.html#fusion.functional.adapters.unfused_typed.see_also">See also</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li><a href="unfused_generic.html" title="unfused_generic"><tt class="computeroutput"><span class="identifier">unfused_generic</span></tt></a></li>
<li><a href="unfused_lvalue_args.html" title="unfused_lvalue_args"><tt class="computeroutput"><span class="identifier">unfused_lvalue_args</span></tt></a></li>
<li><a href="unfused_rvalue_args.html" title="unfused_rvalue_args"><tt class="computeroutput"><span class="identifier">unfused_rvalue_args</span></tt></a></li>
<li><a href="../../support/deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li>
<li><a href="../../support/deduce_sequence.html" title="deduce_sequence"><tt class="computeroutput"><span class="identifier">deduce_sequence</span></tt></a></li>
</ul></div>
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<td align="right"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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