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< title > The MPL Reference Manual: push_back< / title >
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< body class = "docframe refmanual" >
< table class = "header" > < tr class = "header" > < td class = "header-group navigation-bar" > < span class = "navigation-group" > < a href = "./pop-front.html" class = "navigation-link" > Prev< / a > < a href = "./push-front.html" class = "navigation-link" > Next< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./pop-front.html" class = "navigation-link" > Back< / a > < a href = "./push-front.html" class = "navigation-link" > Along< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./intrinsic-metafunctions.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 = "./sequences.html" class = "navigation-link" > Sequences< / a > / < a href = "./intrinsic-metafunctions.html" class = "navigation-link" > Intrinsic Metafunctions< / a > / < a href = "./push-back.html" class = "navigation-link" > push_back< / a > < / td >
< / tr > < / table > < div class = "header-separator" > < / div >
< div class = "section" id = "push-back" >
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< h1 > < a class = "toc-backref" href = "./intrinsic-metafunctions.html#id1443" > push_back< / a > < / h1 >
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< div class = "section" id = "id336" >
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< h3 > < a class = "subsection-title" href = "#synopsis" name = "synopsis" > Synopsis< / a > < / h3 >
< pre class = "literal-block" >
template<
typename Sequence
, typename T
>
struct < a href = "./push-back.html" class = "identifier" > push_back< / a >
{
typedef < em > unspecified< / em > type;
};
< / pre >
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< div class = "section" id = "id337" >
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< h3 > < a class = "subsection-title" href = "#description" name = "description" > Description< / a > < / h3 >
< p > < tt class = "literal" > < span class = "pre" > < a href = "./push-back.html" class = "identifier" > push_back< / a > < / span > < / tt > performs an insertion at the end of the sequence with guaranteed < em > O(1)< / em >
complexity.< / p >
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< div class = "section" id = "id338" >
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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/push_back.hpp" class = "header" > boost/mpl/push_back.hpp< / a > >
< / pre >
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< div class = "section" id = "id339" >
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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 = "./tag-dispatched-metafunction.html" > Tag Dispatched Metafunction< / a > < / p >
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< div class = "section" id = "id340" >
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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" > Sequence< / span > < / tt > < / td >
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< td > < a class = "reference internal" href = "./back-extensible-sequence.html" > Back Extensible Sequence< / a > < / td >
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< td > A sequence to insert into.< / td >
< / tr >
< tr > < td > < tt class = "literal" > < span class = "pre" > T< / span > < / tt > < / td >
< td > Any type< / td >
< td > The element to be inserted.< / td >
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< / tbody >
< / table >
< / div >
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< div class = "section" id = "id341" >
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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 < a class = "reference internal" href = "./back-extensible-sequence.html" > Back Extensible Sequence< / a > < tt class = "literal" > < span class = "pre" > s< / span > < / tt > and arbitrary type < tt class = "literal" > < span class = "pre" > x< / span > < / tt > :< / p >
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< pre class = "literal-block" >
typedef < a href = "./push-back.html" class = "identifier" > push_back< / a > < s,x> ::type r;
< / 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 = "./back-extensible-sequence.html" > Back Extensible Sequence< / 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 >
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< pre class = "literal-block" >
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typedef < a href = "./insert.html" class = "identifier" > insert< / a > < s,< a href = "./end.html" class = "identifier" > end< / a > < s> ::type,x > ::type r;
< / pre >
< / td >
< / tr >
< tr class = "field" > < th class = "field-name" > Postcondition:< / th > < td class = "field-body" > < p class = "first" > < tt class = "literal" > < span class = "pre" > < a href = "./back.html" class = "identifier" > back< / a > < r> ::type< / span > < / tt > is identical to < tt class = "literal" > < span class = "pre" > x< / span > < / tt > ;< / p >
< pre class = "last literal-block" >
< a href = "./size.html" class = "identifier" > size< / a > < r> ::value == < a href = "./size.html" class = "identifier" > size< / a > < s> ::value + 1
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< div class = "section" id = "id342" >
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< h3 > < a class = "subsection-title" href = "#complexity" name = "complexity" > Complexity< / a > < / h3 >
< p > Amortized constant time.< / p >
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< div class = "section" id = "id343" >
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< h3 > < a class = "subsection-title" href = "#example" name = "example" > Example< / a > < / h3 >
< pre class = "literal-block" >
typedef < a href = "./vector-c.html" class = "identifier" > vector_c< / a > < bool,false,false,false,
true,true,true,false,false> bools;
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typedef < a href = "./push-back.html" class = "identifier" > push_back< / a > < bools,< a href = "./bool.html" class = "identifier" > false_< / a > > ::type message;
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< a href = "./assert-relation.html" class = "identifier" > BOOST_MPL_ASSERT_RELATION< / a > ( < a href = "./back.html" class = "identifier" > back< / a > < message> ::type::value, ==, false );
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< a href = "./assert-relation.html" class = "identifier" > BOOST_MPL_ASSERT_RELATION< / a > (
( < a href = "./count-if.html" class = "identifier" > count_if< / a > < message, < a href = "./equal-to.html" class = "identifier" > equal_to< / a > < < a href = "./placeholders.html" class = "identifier" > _1< / a > ,< a href = "./bool.html" class = "identifier" > false_< / a > > > ::value ), ==, 6
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);
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< div class = "section" id = "id344" >
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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 = "./back-extensible-sequence.html" > Back Extensible Sequence< / a > , < a class = "reference internal" href = "./insert.html" > insert< / a > , < a class = "reference internal" href = "./pop-back.html" > pop_back< / a > , < a class = "reference internal" href = "./back.html" > back< / a > , < a class = "reference internal" href = "./push-front.html" > push_front< / 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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