2004-11-28 03:35:12 +00:00
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns = "http://www.w3.org/1999/xhtml" xml:lang = "en" lang = "en" >
< head >
< meta http-equiv = "Content-Type" content = "text/html; charset=utf-8" / >
2010-08-09 20:07:24 +00:00
< meta name = "generator" content = "Docutils 0.7: http://docutils.sourceforge.net/" / >
2004-11-28 03:35:12 +00:00
< title > The MPL Reference Manual: apply< / title >
< link rel = "stylesheet" href = "../style.css" type = "text/css" / >
< / head >
< body class = "docframe refmanual" >
< table class = "header" > < tr class = "header" > < td class = "header-group navigation-bar" > < span class = "navigation-group" > < a href = "./invocation.html" class = "navigation-link" > Prev< / a > < a href = "./apply-wrap.html" class = "navigation-link" > Next< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > Back < a href = "./apply-wrap.html" class = "navigation-link" > Along< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./invocation.html" class = "navigation-link" > Up< / a > < a href = "../refmanual.html" class = "navigation-link" > Home< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./refmanual_toc.html" class = "navigation-link" > Full TOC< / a > < / span > < / td >
< td class = "header-group page-location" > < a href = "../refmanual.html" class = "navigation-link" > Front Page< / a > / < a href = "./metafunctions.html" class = "navigation-link" > Metafunctions< / a > / < a href = "./invocation.html" class = "navigation-link" > Invocation< / a > / < a href = "./apply.html" class = "navigation-link" > apply< / a > < / td >
< / tr > < / table > < div class = "header-separator" > < / div >
< div class = "section" id = "apply" >
2010-08-09 20:07:24 +00:00
< h1 > < a class = "toc-backref" href = "./invocation.html#id1525" > apply< / a > < / h1 >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id887" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#synopsis" name = "synopsis" > Synopsis< / a > < / h3 >
< pre class = "literal-block" >
2009-08-17 11:30:52 +00:00
template<
2004-11-28 03:35:12 +00:00
typename F
>
struct apply0
{
typedef < em > unspecified< / em > type;
};
2009-08-17 11:30:52 +00:00
template<
2004-11-28 03:35:12 +00:00
typename F, typename A1
>
struct apply1
{
typedef < em > unspecified< / em > type;
};
< em > ...< / em >
2009-08-17 11:30:52 +00:00
template<
2004-11-28 03:35:12 +00:00
typename F, typename A1,< em > ...< / em > typename An
>
struct < a href = "./apply.html" class = "identifier" > apply< / a > < em > n< / em >
{
typedef < em > unspecified< / em > type;
};
2009-08-17 11:30:52 +00:00
template<
2004-11-28 03:35:12 +00:00
typename F
, typename A1 = < em > unspecified< / em >
< em > ...< / em >
, typename An = < em > unspecified< / em >
>
struct < a href = "./apply.html" class = "identifier" > apply< / a >
{
typedef < em > unspecified< / em > type;
};
< / pre >
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id888" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#description" name = "description" > Description< / a > < / h3 >
2009-08-17 11:30:52 +00:00
< p > Invokes a < a class = "reference internal" href = "./metafunction-class.html" > Metafunction Class< / a > or a < a class = "reference internal" href = "./lambda-expression.html" > Lambda Expression< / a > < tt class = "literal" > < span class = "pre" > F< / span > < / tt > with arguments < tt class = "literal" > < span class = "pre" > A1< / span > < / tt > ,... < tt class = "literal" > < span class = "pre" > An< / span > < / tt > .< / p >
2004-11-28 03:35:12 +00:00
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id889" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#header" name = "header" > Header< / a > < / h3 >
< pre class = "literal-block" >
#include < < a href = "../../../../boost/mpl/apply.hpp" class = "header" > boost/mpl/apply.hpp< / a > >
< / pre >
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id890" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#parameters" name = "parameters" > Parameters< / a > < / h3 >
2009-08-17 11:30:52 +00:00
< table border = "1" class = "docutils table" >
2004-11-28 03:35:12 +00:00
< colgroup >
< col width = "15%" / >
< col width = "36%" / >
< col width = "48%" / >
< / colgroup >
< thead valign = "bottom" >
2009-08-17 11:30:52 +00:00
< tr > < th class = "head" > Parameter< / th >
< th class = "head" > Requirement< / th >
< th class = "head" > Description< / th >
2004-11-28 03:35:12 +00:00
< / tr >
< / thead >
< tbody valign = "top" >
< tr > < td > < tt class = "literal" > < span class = "pre" > F< / span > < / tt > < / td >
2009-08-17 11:30:52 +00:00
< td > < a class = "reference internal" href = "./lambda-expression.html" > Lambda Expression< / a > < / td >
2004-11-28 03:35:12 +00:00
< td > An expression to invoke.< / td >
< / tr >
< tr > < td > < tt class = "literal" > < span class = "pre" > A1< / span > < / tt > ,... < tt class = "literal" > < span class = "pre" > An< / span > < / tt > < / td >
< td > Any type< / td >
< td > Invocation arguments.< / td >
< / tr >
< / tbody >
< / table >
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id891" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#expression-semantics" name = "expression-semantics" > Expression semantics< / a > < / h3 >
2009-08-17 11:30:52 +00:00
< p > For any < a class = "reference internal" href = "./lambda-expression.html" > Lambda Expression< / a > < tt class = "literal" > < span class = "pre" > f< / span > < / tt > and arbitrary types < tt class = "literal" > < span class = "pre" > a1< / span > < / tt > ,... < tt class = "literal" > < span class = "pre" > an< / span > < / tt > :< / p >
2004-11-28 03:35:12 +00:00
< pre class = "literal-block" >
typedef < a href = "./apply.html" class = "identifier" > apply< / a > < em > n< / em > < f,a1,< em > ...< / em > a< em > n< / em > > ::type t;
typedef < a href = "./apply.html" class = "identifier" > apply< / a > < f,a1,< em > ...< / em > a< em > n< / em > > ::type t;
< / pre >
2009-08-17 11:30:52 +00:00
< table class = "docutils field-list" frame = "void" rules = "none" >
2004-11-28 03:35:12 +00:00
< col class = "field-name" / >
< col class = "field-body" / >
< tbody valign = "top" >
< tr class = "field" > < th class = "field-name" > Return type:< / th > < td class = "field-body" > Any type.< / td >
< / tr >
< tr class = "field" > < th class = "field-name" > Semantics:< / th > < td class = "field-body" > Equivalent to < tt class = "literal" > < span class = "pre" > typedef< / span > < span class = "pre" > < a href = "./apply-wrap.html" class = "identifier" > apply_wrap< / a > < / span > < / tt > < em > n< / em > < tt class = "literal" > < span class = "pre" > < < / span > < span class = "pre" > < a href = "./lambda.html" class = "identifier" > lambda< / a > < f> ::type,a1,...< / span > < span class = "pre" > an> ::type< / span > < span class = "pre" > t;< / span > < / tt > .< / td >
< / tr >
< / tbody >
< / table >
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id892" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#example" name = "example" > Example< / a > < / h3 >
< pre class = "literal-block" >
template< typename N1, typename N2 > struct int_plus
: < a href = "./int.html" class = "identifier" > int_< / a > < ( N1::value + N2::value )>
{
};
2009-08-17 11:30:52 +00:00
typedef < a href = "./apply.html" class = "identifier" > apply< / a > < int_plus< < a href = "./placeholders.html" class = "identifier" > _1< / a > ,< a href = "./placeholders.html" class = "identifier" > _2< / a > > , < a href = "./int.html" class = "identifier" > int_< / a > < 2> , < a href = "./int.html" class = "identifier" > int_< / a > < 3> > ::type r1;
2004-11-28 03:35:12 +00:00
typedef < a href = "./apply.html" class = "identifier" > apply< / a > < < a href = "./quote.html" class = "identifier" > quote< / a > < tt class = "literal" > < span class = "pre" > 2< / span > < / tt > < int_plus> , < a href = "./int.html" class = "identifier" > int_< / a > < 2> , < a href = "./int.html" class = "identifier" > int_< / a > < 3> > ::type r2;
< a href = "./assert-relation.html" class = "identifier" > BOOST_MPL_ASSERT_RELATION< / a > ( r1::value, ==, 5 );
< a href = "./assert-relation.html" class = "identifier" > BOOST_MPL_ASSERT_RELATION< / a > ( r2::value, ==, 5 );
< / pre >
< / div >
2009-08-17 11:30:52 +00:00
< div class = "section" id = "id893" >
2004-11-28 03:35:12 +00:00
< h3 > < a class = "subsection-title" href = "#see-also" name = "see-also" > See also< / a > < / h3 >
2009-08-17 11:30:52 +00:00
< p > < a class = "reference internal" href = "./metafunctions.html" > Metafunctions< / a > , < a class = "reference internal" href = "./apply-wrap.html" > apply_wrap< / a > , < a class = "reference internal" href = "./lambda.html" > lambda< / a > , < a class = "reference internal" href = "./quote.html" > quote< / a > , < a class = "reference internal" href = "./bind.html" > bind< / a > < / p >
2004-11-28 03:35:12 +00:00
<!-- Metafunctions/Invocation//apply_wrap |20 -->
< / div >
< / div >
< div class = "footer-separator" > < / div >
< table class = "footer" > < tr class = "footer" > < td class = "header-group navigation-bar" > < span class = "navigation-group" > < a href = "./invocation.html" class = "navigation-link" > Prev< / a > < a href = "./apply-wrap.html" class = "navigation-link" > Next< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > Back < a href = "./apply-wrap.html" class = "navigation-link" > Along< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./invocation.html" class = "navigation-link" > Up< / a > < a href = "../refmanual.html" class = "navigation-link" > Home< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./refmanual_toc.html" class = "navigation-link" > Full TOC< / a > < / span > < / td >
2009-08-17 11:30:52 +00:00
< td > < div class = "copyright-footer" > < div class = "copyright" > Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams< / div >
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at < a class = "reference external" href = "http://www.boost.org/LICENSE_1_0.txt" target = "_top" > http://www.boost.org/LICENSE_1_0.txt< / a > )< / div > < / td > < / tr > < / table > < / body >
2004-11-28 03:35:12 +00:00
< / html >
