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< title > The MPL Reference Manual: quote< / title >
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< table class = "header" > < tr class = "header" > < td class = "header-group navigation-bar" > < span class = "navigation-group" > < a href = "./bind.html" class = "navigation-link" > Prev< / a > < a href = "./arg.html" class = "navigation-link" > Next< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./bind.html" class = "navigation-link" > Back< / a > < a href = "./arg.html" class = "navigation-link" > Along< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./composition-and-argument-binding.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 = "./composition-and-argument-binding.html" class = "navigation-link" > Composition and Argument Binding< / a > / < a href = "./quote.html" class = "navigation-link" > quote< / a > < / td >
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< / tr > < / table > < div class = "header-separator" > < / div >
< div class = "section" id = "quote" >
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< h1 > < a class = "toc-backref" href = "./composition-and-argument-binding.html#id1532" > quote< / a > < / h1 >
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< div class = "section" id = "id938" >
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< h3 > < a class = "subsection-title" href = "#synopsis" name = "synopsis" > Synopsis< / a > < / h3 >
< pre class = "literal-block" >
template<
template< typename P1 > class F
, typename Tag = < em > unspecified< / em >
>
struct quote1
{
// < em > unspecified< / em >
// < em > ...< / em >
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};
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< em > ...< / em >
template<
template< typename P1,< em > ...< / em > typename P< em > n< / em > > class F
, typename Tag = < em > unspecified< / em >
>
struct < a href = "./quote.html" class = "identifier" > quote< / a > < em > n< / em >
{
// < em > unspecified< / em >
// < em > ...< / em >
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};
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< / pre >
< / div >
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< div class = "section" id = "id939" >
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< h3 > < a class = "subsection-title" href = "#description" name = "description" > Description< / a > < / h3 >
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< p > < tt class = "literal" > < span class = "pre" > < a href = "./quote.html" class = "identifier" > quote< / a > < / span > < / tt > < em > n< / em > is a higher-order primitive that wraps an < em > n< / em > -ary < a class = "reference internal" href = "./metafunction.html" > Metafunction< / a > to create
a corresponding < a class = "reference internal" href = "./metafunction-class.html" > Metafunction Class< / a > .< / p >
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< / div >
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< div class = "section" id = "id940" >
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< h3 > < a class = "subsection-title" href = "#header" name = "header" > Header< / a > < / h3 >
< pre class = "literal-block" >
#include < < a href = "../../../../boost/mpl/quote.hpp" class = "header" > boost/mpl/quote.hpp< / a > >
< / pre >
< / div >
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< div class = "section" id = "id941" >
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< h3 > < a class = "subsection-title" href = "#model-of" name = "model-of" > Model of< / a > < / h3 >
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< p > < a class = "reference internal" href = "./metafunction-class.html" > Metafunction Class< / a > < / p >
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< / div >
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< div class = "section" id = "id942" >
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< h3 > < a class = "subsection-title" href = "#parameters" name = "parameters" > Parameters< / a > < / h3 >
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< tr > < th class = "head" > Parameter< / th >
< th class = "head" > Requirement< / th >
< th class = "head" > Description< / th >
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< / tr >
< / thead >
< tbody valign = "top" >
< tr > < td > < tt class = "literal" > < span class = "pre" > F< / span > < / tt > < / td >
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< td > < a class = "reference internal" href = "./metafunction.html" > Metafunction< / a > < / td >
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< td > A metafunction to wrap.< / td >
< / tr >
< tr > < td > < tt class = "literal" > < span class = "pre" > Tag< / span > < / tt > < / td >
< td > Any type< / td >
< td > A tag determining wrap semantics.< / td >
< / tr >
< / tbody >
< / table >
< / div >
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< div class = "section" id = "id943" >
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< h3 > < a class = "subsection-title" href = "#expression-semantics" name = "expression-semantics" > Expression semantics< / a > < / h3 >
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< p > For any < em > n< / em > -ary < a class = "reference internal" href = "./metafunction.html" > Metafunction< / a > < tt class = "literal" > < span class = "pre" > f< / span > < / tt > and arbitrary type < tt class = "literal" > < span class = "pre" > tag< / span > < / tt > :< / p >
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< pre class = "literal-block" >
typedef < a href = "./quote.html" class = "identifier" > quote< / a > < em > n< / em > < f> g;
typedef < a href = "./quote.html" class = "identifier" > quote< / a > < em > n< / em > < f,tag> g;
< / pre >
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< table class = "docutils field-list" frame = "void" rules = "none" >
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< col class = "field-name" / >
< col class = "field-body" / >
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< tr class = "field" > < th class = "field-name" > Return type:< / th > < td class = "field-body" > < p class = "first" > < a class = "reference internal" href = "./metafunction-class.html" > Metafunction Class< / a > < / p >
< / td >
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< / tr >
< tr class = "field" > < th class = "field-name" > Semantics:< / th > < td class = "field-body" > < p class = "first" > Equivalent to< / p >
< pre class = "literal-block" >
struct g
{
template< typename A1,< em > ...< / em > typename A< em > n< / em > > struct < a href = "./apply.html" class = "identifier" > apply< / a >
: f< A1,< em > ...< / em > A< em > n< / em > >
{
};
};
< / pre >
< p > if < tt class = "literal" > < span class = "pre" > f< A1,...An> < / span > < / tt > has a nested type member < tt class = "literal" > < span class = "pre" > ::type< / span > < / tt > , and to< / p >
< pre class = "literal-block" >
struct g
{
template< typename A1,< em > ...< / em > typename A< em > n< / em > > struct < a href = "./apply.html" class = "identifier" > apply< / a >
{
typedef f< A1,< em > ...< / em > A< em > n< / em > > type;
};
};
< / pre >
< p class = "last" > otherwise.< / p >
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< div class = "section" id = "id944" >
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< h3 > < a class = "subsection-title" href = "#example" name = "example" > Example< / a > < / h3 >
< pre class = "literal-block" >
template< typename T > struct f1
{
typedef T type;
};
template<
typename T1, typename T2, typename T3, typename T4, typename T5
>
struct f5
{
// no 'type' member!
};
typedef < a href = "./quote.html" class = "identifier" > quote< / a > < tt class = "literal" > < span class = "pre" > 1< / span > < / tt > < f1> ::< a href = "./apply.html" class = "identifier" > apply< / a > < int> ::type t1;
typedef < a href = "./quote.html" class = "identifier" > quote< / a > < tt class = "literal" > < span class = "pre" > 5< / span > < / tt > < f5> ::< a href = "./apply.html" class = "identifier" > apply< / a > < char,short,int,long,float> ::type t5;
< a href = "./assert.html" class = "identifier" > BOOST_MPL_ASSERT< / a > (( is_same< t1, int > ));
< a href = "./assert.html" class = "identifier" > BOOST_MPL_ASSERT< / a > (( is_same< t5, f5< char,short,int,long,float> > ));
< / pre >
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< div class = "section" id = "id945" >
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< h3 > < a class = "subsection-title" href = "#see-also" name = "see-also" > See also< / a > < / h3 >
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< p > < a class = "reference internal" href = "./composition-and-argument-binding.html" > Composition and Argument Binding< / a > , < a class = "reference internal" href = "./invocation.html" > invocation< / a > , < a class = "reference internal" href = "./bind.html" > bind< / a > , < a class = "reference internal" href = "./lambda.html" > lambda< / a > , < a class = "reference internal" href = "./protect.html" > protect< / a > , < a class = "reference internal" href = "./apply.html" > apply< / a > < / p >
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< 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
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