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Callable Object< / title >
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< a name = "fusion.functional.concepts.def_callable" > < / a > < a href = "def_callable.html" title = " Deferred
Callable Object"> Deferred
Callable Object< / a > < / h4 > < / div > < / div > < / div >
< a name = "fusion.functional.concepts.def_callable.description" > < / a > < h5 >
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< a name = "id655444" > < / a >
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< a href = "def_callable.html#fusion.functional.concepts.def_callable.description" > Description< / a >
< / h5 >
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< p >
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< a href = "callable.html" title = " Callable Object" > Callable Object< / a >
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types that work with < a href = "http://www.boost.org/libs/utility/utility.htm#result_of" target = "_top" > Boost.ResultOf< / a >
to determine the result of a call.
< / p >
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< a name = "fusion.functional.concepts.def_callable.refinement_of" > < / a > < h5 >
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< a name = "id655491" > < / a >
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< a href = "def_callable.html#fusion.functional.concepts.def_callable.refinement_of" > Refinement
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of< / a >
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< / h5 >
< div class = "itemizedlist" > < ul type = "disc" > < li > < a href = "callable.html" title = " Callable Object" > Callable Object< / a > < / li > < / ul > < / div >
< div class = "sidebar" > < p >
note Once C++ supports the < tt class = "literal" > decltype< / tt > keyword, all models
of < a href = "callable.html" title = " Callable Object" > Callable Object< / a >
will also be models of < a href = "def_callable.html" title = " Deferred
Callable Object">Deferred
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Callable Object< / a > , because function objects won't need client-side
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support for < tt class = "computeroutput" > < span class = "identifier" > result_of< / span > < / tt > .
< / p > < / div >
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< div class = "variablelist" >
< p class = "title" > < b > Notation< / b > < / p >
< dl >
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< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > F< / span > < / tt > < / span > < / dt >
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< dd > < p >
A possibly const qualified Deferred Callable Object type
< / p > < / dd >
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< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > A1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > AN< / span > < / tt > < / span > < / dt >
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< dd > < p >
Argument types
< / p > < / dd >
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< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > a1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > aN< / span > < / tt > < / span > < / dt >
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< dd > < p >
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Objects or references to objects with types < tt class = "computeroutput" > < span class = "identifier" > A1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > AN< / span > < / tt >
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< / p > < / dd >
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< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > T1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > TN< / span > < / tt > < / span > < / dt >
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< dd > < p >
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< tt class = "computeroutput" > < span class = "identifier" > T< / span > < / tt > i is < tt class = "computeroutput" > < span class = "identifier" > A< / span > < / tt > i < tt class = "computeroutput" > < span class = "special" > & < / span > < / tt >
if < tt class = "computeroutput" > < span class = "identifier" > a< / span > < / tt > i is an LValue,
same as < tt class = "computeroutput" > < span class = "identifier" > A< / span > < / tt > i, otherwise
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< / p > < / dd >
< / dl >
< / div >
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< a name = "fusion.functional.concepts.def_callable.expression_requirements" > < / a > < h5 >
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< a name = "id655797" > < / a >
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< a href = "def_callable.html#fusion.functional.concepts.def_callable.expression_requirements" > Expression
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requirements< / a >
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< / h5 >
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< div class = "informaltable" > < table class = "table" >
< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th >
< p >
Expression
< / p >
< / th >
< th >
< p >
Type
< / p >
< / th >
< / tr > < / thead >
< tbody > < tr >
< td >
< p >
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< a href = "http://www.boost.org/libs/utility/utility.htm#result_of" target = "_top" > < tt class = "computeroutput" > < span class = "identifier" > boost< / span > < span class = "special" > ::< / span > < span class = "identifier" > result_of< / span > < / tt > < / a > < tt class = "computeroutput" > < span class = "special" > < < / span > < span class = "identifier" > F< / span > < span class = "special" > (< / span > < span class = "identifier" > T1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > TN< / span > < span class = "special" > )< / span > < span class = "special" > > ::< / span > < span class = "identifier" > type< / span > < / tt >
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< / p >
< / td >
< td >
< p >
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Result of a call with < tt class = "computeroutput" > < span class = "identifier" > A1< / span >
< span class = "special" > ...< / span > < span class = "identifier" > AN< / span > < / tt > -typed
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arguments
< / p >
< / td >
< / tr > < / tbody >
< / table > < / div >
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< a name = "fusion.functional.concepts.def_callable.models" > < / a > < h5 >
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< a name = "id655980" > < / a >
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< a href = "def_callable.html#fusion.functional.concepts.def_callable.models" > Models< / a >
< / h5 >
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< div class = "itemizedlist" > < ul type = "disc" >
< li >
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< a href = "poly.html" title = " Polymorphic Function
Object">Polymorphic Function
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Object< / a > types
< / li >
< li >
member (function or data) pointer types
< / li >
< / ul > < / div >
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< a name = "fusion.functional.concepts.def_callable.examples" > < / a > < h5 >
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< a name = "id656027" > < / a >
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< a href = "def_callable.html#fusion.functional.concepts.def_callable.examples" > Examples< / a >
< / h5 >
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< pre class = "programlisting" >
< span class = "special" > & < / span > < span class = "identifier" > a_free_function< / span >
< span class = "special" > & < / span > < span class = "identifier" > a_class< / span > < span class = "special" > ::< / span > < span class = "identifier" > a_static_member_function< / span >
< span class = "special" > & < / span > < span class = "identifier" > a_class< / span > < span class = "special" > ::< / span > < span class = "identifier" > a_nonstatic_data_member< / span >
< span class = "special" > & < / span > < span class = "identifier" > a_class< / span > < span class = "special" > ::< / span > < span class = "identifier" > a_nonstatic_member_function< / span >
< span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > less< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > > ()< / span >
< span class = "comment" > // using namespace boost;
< / span > < span class = "identifier" > bind< / span > < span class = "special" > (< / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > less< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > > (),< / span > < span class = "identifier" > _1< / span > < span class = "special" > ,< / span > < span class = "number" > 5< / span > < span class = "special" > )< / span >
< span class = "comment" > // Note: Boost.Lambda expressions don't work with __boost_result_of__
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< / span > < span class = "identifier" > fusion< / span > < span class = "special" > ::< / span > < a href = "../generation/functions/mk_fused_fobj.html" title = "
make_fused_function_object">< tt class = "computeroutput" > < span class = "identifier" > make_fused_function_object< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > less< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > > ())< / span >
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< / pre >
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< 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 > )
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