2007-11-25 18:38:02 +00:00
< html >
< head >
2010-01-01 22:00:21 +00:00
< meta http-equiv = "Content-Type" content = "text/html; charset=US-ASCII" >
2007-11-25 18:38:02 +00:00
< title > invoke</ title >
< link rel = "stylesheet" href = "../../../../../../../../doc/html/boostbook.css" type = "text/css" >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
2009-10-11 16:12:54 +00:00
< meta name = "generator" content = "DocBook XSL Stylesheets V1.65.1" >
2010-01-01 22:00:21 +00:00
=======
< meta name = "generator" content = "DocBook XSL Stylesheets V1.75.1" >
<<<<<< < .working
> >>>>>> .merge-right.r57125
2009-09-14 07:47:53 +00:00
< link rel = "home" href = "../../../../index.html" title = "Chapter >
2010-01-01 22:00:21 +00:00
=======
< link rel = "home" href = "../../../../index.html" title = "Chapter 1. Fusion 2.0" >
>>>>>>> .merge-right.r58299
2007-11-25 18:38:02 +00:00
< link rel = "up" href = "../functions.html" title = "Functions" >
2009-10-11 16:12:54 +00:00
< link rel = "previous" href = "../functions.html" title = "Functions" >
< link rel = "next" href = "invoke_proc.html" title = "
invoke_procedure" >
2007-11-25 18:38:02 +00:00
</ head >
< body bgcolor = "white" text = "black" link = "#0000FF" vlink = "#840084" alink = "#0000FF" >
< table cellpadding = "2" width = "100%" >< tr >
< td valign = "top" >< img alt = "Boost C++ Libraries" width = "277" height = "86" src = "../../../../../../../../boost.png" ></ td >
2008-07-17 23:59:40 +00:00
< td align = "center" >< a href = "../../../../../../../../index.html" > Home</ a ></ td >
2007-11-25 18:38:02 +00:00
< td align = "center" >< a href = "../../../../../../../libraries.htm" > Libraries</ a ></ td >
2008-07-17 23:59:40 +00:00
< td align = "center" >< a href = "http://www.boost.org/users/people.html" > People</ a ></ td >
< td align = "center" >< a href = "http://www.boost.org/users/faq.html" > FAQ</ a ></ td >
2007-11-25 18:38:02 +00:00
< td align = "center" >< a href = "../../../../../../../../more/index.htm" > More</ a ></ td >
</ tr ></ table >
< hr >
< div class = "spirit-nav" >
< a accesskey = "p" href = "../functions.html" >< img src = "../../../../../../../../doc/html/images/prev.png" alt = "Prev" ></ a >< a accesskey = "u" href = "../functions.html" >< img src = "../../../../../../../../doc/html/images/up.png" alt = "Up" ></ a >< a accesskey = "h" href = "../../../../index.html" >< img src = "../../../../../../../../doc/html/images/home.png" alt = "Home" ></ a >< a accesskey = "n" href = "invoke_proc.html" >< img src = "../../../../../../../../doc/html/images/next.png" alt = "Next" ></ a >
</ div >
2009-10-11 16:12:54 +00:00
< div class = "section" lang = "en" >
< div class = "titlepage" >
< div >< div >< h5 class = "title" >
< a name = "fusion.functional.invocation.functions.invoke" ></ a >< a href = "invoke.html" title = "invoke" > invoke</ a >
</ h5 ></ div ></ div >
< div ></ div >
</ div >
2007-11-25 18:38:02 +00:00
< a name = "fusion.functional.invocation.functions.invoke.description" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id612575" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.description" > Description</ a >
2010-01-01 22:00:21 +00:00
=======
< a name = "id863812" ></ a >
=======
< a name = "id828476" ></ a >
=======
< a name = "id820851" ></ a >
=======
< a name = "id842590" ></ a >
=======
< a name = "id831389" ></ a >
=======
< a name = "id828112" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.description" > Description</ a >
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
</ h6 >
< p >
2009-10-11 16:12:54 +00:00
Calls a < a href = "../../concepts/def_callable.html" title = " Deferred
Callable Object" > Deferred
Callable Object</ a > with the arguments from a < a href = "../../../sequence.html" title = "Sequence" > Sequence</ a > .
2007-11-25 18:38:02 +00:00
</ p >
< p >
The first template parameter can be specialized explicitly to avoid copying
and/or to control the const qualification of a function object.
</ 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
2009-10-11 16:12:54 +00:00
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 > ).
2007-11-25 18:38:02 +00:00
</ p >
2009-09-14 07:47:53 +00:00
< p >
Constructors can be called applying < a href = "http://www.boost.org/libs/functional/factory/doc/html/index.html" target = "_top" > Boost.Functional/Factory</ a > .
</ p >
2007-11-25 18:38:02 +00:00
< a name = "fusion.functional.invocation.functions.invoke.synopsis" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id612688" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.synopsis" > Synopsis</ a >
2010-01-01 22:00:21 +00:00
=======
< a name = "id863883" ></ a >
=======
< a name = "id828546" ></ a >
=======
< a name = "id820922" ></ a >
=======
< a name = "id842661" ></ a >
=======
< a name = "id831460" ></ a >
=======
< a name = "id828183" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.synopsis" > Synopsis</ a >
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
</ h6 >
2009-09-14 07:47:53 +00:00
< pre class = "programlisting" >< span class = "keyword" > template</ span >< span class = "special" > < </ span >
2007-11-25 18:38:02 +00:00
< span class = "keyword" > typename</ span > < span class = "identifier" > Function</ span >< span class = "special" > ,</ span >
< span class = "keyword" > class</ span > < span class = "identifier" > Sequence</ span >
< span class = "special" > > </ span >
2009-10-11 16:12:54 +00:00
< span class = "keyword" > typename</ span > < a href = "../metafunctions/invoke.html" title = "invoke" >< tt class = "computeroutput" >< span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > invoke</ span ></ tt ></ a >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > ,</ span > < span class = "identifier" > Sequence</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span >
2007-11-25 18:38:02 +00:00
< span class = "identifier" > invoke</ span >< span class = "special" > (</ span >< span class = "identifier" > Function</ span > < span class = "identifier" > f</ span >< span class = "special" > ,</ span > < span class = "identifier" > Sequence</ span > < span class = "special" > & </ span > < span class = "identifier" > s</ span >< span class = "special" > );</ span >
< 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" > Sequence</ span >
< span class = "special" > > </ span >
2009-10-11 16:12:54 +00:00
< span class = "keyword" > typename</ span > < a href = "../metafunctions/invoke.html" title = "invoke" >< tt class = "computeroutput" >< span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > invoke</ span ></ tt ></ a >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > ,</ span > < span class = "identifier" > Sequence</ span > < span class = "keyword" > const</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span >
2007-11-25 18:38:02 +00:00
< span class = "identifier" > invoke</ span >< span class = "special" > (</ span >< span class = "identifier" > Function</ span > < span class = "identifier" > f</ span >< span class = "special" > ,</ span > < span class = "identifier" > Sequence</ span > < span class = "keyword" > const</ span > < span class = "special" > & </ span > < span class = "identifier" > s</ span >< span class = "special" > );</ span >
</ pre >
< a name = "fusion.functional.invocation.functions.invoke.parameters" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id613062" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.parameters" > Parameters</ a >
2010-01-01 22:00:21 +00:00
=======
< a name = "id864150" ></ a >
=======
< a name = "id828813" ></ a >
=======
< a name = "id821188" ></ a >
=======
< a name = "id842927" ></ a >
=======
< a name = "id831726" ></ a >
=======
< a name = "id828450" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.parameters" > Parameters</ a >
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
</ h6 >
< div class = "informaltable" >< table class = "table" >
< colgroup >
< col >
< col >
< col >
</ colgroup >
< thead >< tr >
2009-10-11 16:12:54 +00:00
< th >< p >
2007-11-25 18:38:02 +00:00
Parameter
2009-10-11 16:12:54 +00:00
</ p ></ th >
< th >< p >
2007-11-25 18:38:02 +00:00
Requirement
2009-10-11 16:12:54 +00:00
</ p ></ th >
< th >< p >
2007-11-25 18:38:02 +00:00
Description
2009-10-11 16:12:54 +00:00
</ p ></ th >
2007-11-25 18:38:02 +00:00
</ tr ></ thead >
< tbody >
< tr >
2009-10-11 16:12:54 +00:00
< td >< p >
< tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt >
</ p ></ td >
< td >< p >
A < a href = "../../concepts/def_callable.html" title = " Deferred
Callable Object" > Deferred
2007-11-25 18:38:02 +00:00
Callable Object</ a >
2009-10-11 16:12:54 +00:00
</ p ></ td >
< td >< p >
2007-11-25 18:38:02 +00:00
The function to call.
2009-10-11 16:12:54 +00:00
</ p ></ td >
2007-11-25 18:38:02 +00:00
</ tr >
< tr >
2009-10-11 16:12:54 +00:00
< td >< p >
< tt class = "computeroutput" >< span class = "identifier" > s</ span ></ tt >
</ p ></ td >
< td >< p >
A < a href = "../../../sequence/concepts/forward_sequence.html" title = "Forward
Sequence" > Forward
2007-11-25 18:38:02 +00:00
Sequence</ a >
2009-10-11 16:12:54 +00:00
</ p ></ td >
< td >< p >
2007-11-25 18:38:02 +00:00
The arguments.
2009-10-11 16:12:54 +00:00
</ p ></ td >
2007-11-25 18:38:02 +00:00
</ tr >
</ tbody >
</ table ></ div >
< a name = "fusion.functional.invocation.functions.invoke.expression_semantics" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id613223" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.expression_semantics" > Expression
2010-01-01 22:00:21 +00:00
=======
< a name = "id864276" ></ a >
=======
< a name = "id828939" ></ a >
=======
< a name = "id821314" ></ a >
=======
< a name = "id843053" ></ a >
=======
< a name = "id831852" ></ a >
=======
< a name = "id828576" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.expression_semantics" > Expression
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
Semantics</ a >
</ h6 >
2009-09-14 07:47:53 +00:00
< pre class = "programlisting" >< span class = "identifier" > invoke</ span >< span class = "special" > (</ span >< span class = "identifier" > f</ span >< span class = "special" > ,</ span >< span class = "identifier" > s</ span >< span class = "special" > );</ span >
2007-11-25 18:38:02 +00:00
</ pre >
< p >
2009-10-11 16:12:54 +00:00
< span class = "bold" >< b > Return type</ b ></ span > : Return type of < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt > when invoked with the elements in
< tt class = "computeroutput" >< span class = "identifier" > s</ span ></ tt > as its arguments.
2007-11-25 18:38:02 +00:00
</ p >
< p >
2009-10-11 16:12:54 +00:00
< span class = "bold" >< b > Semantics</ b ></ span > : Invokes < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt >
with the elements in < tt class = "computeroutput" >< span class = "identifier" > s</ span ></ tt >
2007-11-25 18:38:02 +00:00
as arguments and returns the result of the call expression.
</ p >
2009-09-14 07:47:53 +00:00
< a name = "fusion.functional.invocation.functions.invoke.header" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id613356" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.header" > Header</ a >
2010-01-01 22:00:21 +00:00
=======
< a name = "id864361" ></ a >
=======
< a name = "id829024" ></ a >
=======
< a name = "id821400" ></ a >
=======
< a name = "id843139" ></ a >
=======
< a name = "id831938" ></ a >
=======
< a name = "id828661" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.header" > Header</ a >
>>>>>>> .merge-right.r57125
2009-09-14 07:47:53 +00:00
</ h6 >
< pre class = "programlisting" >< span class = "preprocessor" > #include</ span > < span class = "special" > < </ span >< span class = "identifier" > boost</ span >< span class = "special" > /</ span >< span class = "identifier" > fusion</ span >< span class = "special" > /</ span >< span class = "identifier" > functional</ span >< span class = "special" > /</ span >< span class = "identifier" > invocation</ span >< span class = "special" > /</ span >< span class = "identifier" > invoke</ span >< span class = "special" > .</ span >< span class = "identifier" > hpp</ span >< span class = "special" > > </ span >
</ pre >
2007-11-25 18:38:02 +00:00
< a name = "fusion.functional.invocation.functions.invoke.example" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id613459" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.example" > Example</ a >
2010-01-01 22:00:21 +00:00
=======
< a name = "id864704" ></ a >
=======
< a name = "id829094" ></ a >
=======
< a name = "id821469" ></ a >
=======
< a name = "id843208" ></ a >
=======
< a name = "id832007" ></ a >
=======
< a name = "id828730" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.example" > Example</ a >
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
</ h6 >
2009-10-11 16:12:54 +00:00
< pre class = "programlisting" >< 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" > < </ span >< span class = "keyword" > int</ span >< span class = "special" > > </ span > < span class = "identifier" > add</ span >< span class = "special" > ;</ span >
< span class = "identifier" > assert</ span >< span class = "special" > (</ span >< span class = "identifier" > invoke</ span >< span class = "special" > (</ span >< span class = "identifier" > add</ 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" > 1</ span >< span class = "special" > ))</ span > < span class = "special" > ==</ span > < span class = "number" > 2</ span >< span class = "special" > );</ span >
2007-11-25 18:38:02 +00:00
</ pre >
< a name = "fusion.functional.invocation.functions.invoke.see_also" ></ a >< h6 >
2010-01-01 22:00:21 +00:00
<<<<<< < .working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
<<<<<<< . working
2009-10-11 16:12:54 +00:00
< a name = "id613626" ></ a >
< a href = "invoke.html#fusion.functional.invocation.functions.invoke.see_also" > See
2010-01-01 22:00:21 +00:00
=======
< a name = "id864819" ></ a >
=======
< a name = "id829209" ></ a >
=======
< a name = "id821584" ></ a >
=======
< a name = "id843323" ></ a >
=======
< a name = "id832122" ></ a >
=======
< a name = "id828846" ></ a >
>>>>>>> .merge-right.r58559
>>>>>>> .merge-right.r58549
>>>>>>> .merge-right.r58299
>>>>>>> .merge-right.r57337
>>>>>>> .merge-right.r57242
< a class = "link" href = "invoke.html#fusion.functional.invocation.functions.invoke.see_also" > See
>>>>>>> .merge-right.r57125
2007-11-25 18:38:02 +00:00
also</ a >
</ h6 >
2009-10-11 16:12:54 +00:00
< div class = "itemizedlist" >< ul type = "disc" >
< li >< a href = "invoke_proc.html" title = "
invoke_procedure" >< tt class = "computeroutput" >< span class = "identifier" > invoke_procedure</ span ></ tt ></ a ></ li >
< li >< a href = "invoke_fobj.html" title = "
invoke_function_object" >< tt class = "computeroutput" >< span class = "identifier" > invoke_function_object</ span ></ tt ></ a ></ li >
< li >< a href = "../metafunctions/invoke.html" title = "invoke" >< tt class = "computeroutput" >< span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > invoke</ span ></ tt ></ a ></ li >
< li >< a href = "../../adapters/fused.html" title = "fused" >< tt class = "computeroutput" >< span class = "identifier" > fused</ span ></ tt ></ a ></ li >
< li >< a href = "../../generation/functions/mk_fused.html" title = "
make_fused" >< tt class = "computeroutput" >< span class = "identifier" > make_fused</ span ></ tt ></ a ></ li >
2007-11-25 18:38:02 +00:00
</ ul ></ div >
</ div >
< table xmlns:rev = "http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width = "100%" >< tr >
< td align = "left" ></ td >
2010-01-01 22:00:21 +00:00
< td align = "right" >< div class = "copyright-footer" > Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias
2007-11-25 18:38:02 +00:00
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 >
< hr >
< div class = "spirit-nav" >
< a accesskey = "p" href = "../functions.html" >< img src = "../../../../../../../../doc/html/images/prev.png" alt = "Prev" ></ a >< a accesskey = "u" href = "../functions.html" >< img src = "../../../../../../../../doc/html/images/up.png" alt = "Up" ></ a >< a accesskey = "h" href = "../../../../index.html" >< img src = "../../../../../../../../doc/html/images/home.png" alt = "Home" ></ a >< a accesskey = "n" href = "invoke_proc.html" >< img src = "../../../../../../../../doc/html/images/next.png" alt = "Next" ></ a >
</ div >
</ body >
</ html >
