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< 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 >
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< a name = "id662974" > < / a >
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< 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>
< / p >
< a name = "fusion.functional.adapters.fused_procedure.synopsis" > < / a > < h5 >
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< a name = "id663138" > < / a >
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< 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" > < < / span > < span class = "keyword" > typename< / span > < span class = "identifier" > Function< / span > < span class = "special" > > < / 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 >
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< a name = "id663219" > < / a >
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< 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 >
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< a name = "id663333" > < / a >
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< 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" > < < / span > < span class = "identifier" > R< / span > < span class = "special" > > < / span > < / tt >
< / p > < / dd >
< / dl >
< / div >
< a name = "fusion.functional.adapters.fused_procedure.expression_semantics" > < / a > < h5 >
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< a name = "id663554" > < / a >
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< 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" > < < / span > < span class = "identifier" > R< / span > < span class = "special" > > (< / 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" > < < / span > < span class = "identifier" > R< / 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" > 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 >
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< a name = "id663811" > < / a >
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< 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" > < < / 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" > > < / 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" > & < / span > < span class = "identifier" > s< / span > < span class = "special" > ,< / span > < span class = "identifier" > Func< / span > < span class = "keyword" > const< / span > < span class = "special" > & < / span > < span class = "identifier" > f< / span > < span class = "special" > )< / span >
< span class = "special" > {< / span >
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< 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" > < < / span > < span class = "identifier" > SequenceOfSequences< / span > < span class = "special" > > (< / span > < span class = "identifier" > s< / span > < span class = "special" > ),< / span >
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< span class = "identifier" > fused_procedure< / span > < span class = "special" > < < / span > < span class = "identifier" > Func< / span > < span class = "keyword" > const< / span > < span class = "special" > & > (< / span > < span class = "identifier" > f< / span > < span class = "special" > ));< / span >
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< span class = "special" > }< / span >
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< 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" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "keyword" > float< / span > < span class = "special" > > < / 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" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "keyword" > float< / span > < span class = "special" > > < / 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 >
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< a name = "id664419" > < / a >
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< 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 >
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< td align = "right" > < div class = "copyright-footer" > Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
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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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< div class = "spirit-nav" >
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