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< title > The MPL Reference Manual: next< / title >
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< table class = "header" > < tr class = "header" > < td class = "header-group navigation-bar" > < span class = "navigation-group" > < a href = "./distance.html" class = "navigation-link" > Prev< / a > < a href = "./prior.html" class = "navigation-link" > Next< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./distance.html" class = "navigation-link" > Back< / a > < a href = "./prior.html" class = "navigation-link" > Along< / a > < / span > < span class = "navigation-group-separator" > | < / span > < span class = "navigation-group" > < a href = "./iterator-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 = "./iterators.html" class = "navigation-link" > Iterators< / a > / < a href = "./iterator-metafunctions.html" class = "navigation-link" > Iterator Metafunctions< / a > / < a href = "./next.html" class = "navigation-link" > next< / a > < / td >
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< div class = "section" id = "next" >
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< h1 > < a class = "toc-backref" href = "./iterator-metafunctions.html#id1456" > next< / a > < / h1 >
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< div class = "section" id = "id421" >
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< h3 > < a class = "subsection-title" href = "#synopsis" name = "synopsis" > Synopsis< / a > < / h3 >
< pre class = "literal-block" >
template<
typename Iterator
>
struct < a href = "./next.html" class = "identifier" > next< / a >
{
typedef < em > unspecified< / em > type;
};
< / pre >
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< div class = "section" id = "id422" >
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< h3 > < a class = "subsection-title" href = "#description" name = "description" > Description< / a > < / h3 >
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< p > Returns the next iterator in the sequence. [< em > Note:< / em > < tt class = "literal" > < span class = "pre" > < a href = "./next.html" class = "identifier" > next< / a > < / span > < / tt > has a number of
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overloaded meanings, depending on the type of its argument. For instance,
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if < tt class = "literal" > < span class = "pre" > X< / span > < / tt > is an < a class = "reference internal" href = "./integral-constant.html" > Integral Constant< / a > , < tt class = "literal" > < span class = "pre" > < a href = "./next.html" class = "identifier" > next< / a > < X> < / span > < / tt > returns an incremented
< a class = "reference internal" href = "./integral-constant.html" > Integral Constant< / a > of the same type. The following specification is
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iterator-specific. Please refer to the corresponding concept's
documentation for the details of the alternative semantics — < em > end note< / em > ].< / p >
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< div class = "section" id = "id423" >
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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/next_prior.hpp" class = "header" > boost/mpl/next_prior.hpp< / a > >
< / pre >
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< div class = "section" id = "id424" >
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< h3 > < a class = "subsection-title" href = "#parameters" name = "parameters" > Parameters< / a > < / h3 >
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< table border = "1" class = "docutils table" >
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< colgroup >
< col width = "19%" / >
< col width = "35%" / >
< col width = "45%" / >
< / colgroup >
< thead valign = "bottom" >
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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" > Iterator< / span > < / tt > < / td >
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< td > < a class = "reference internal" href = "./forward-iterator.html" > Forward Iterator< / a > .< / td >
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< td > An iterator to increment.< / td >
< / tr >
< / tbody >
< / table >
< / div >
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< div class = "section" id = "id425" >
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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 = "./forward-iterator.html" > Forward Iterator< / a > s < tt class = "literal" > < span class = "pre" > iter< / span > < / tt > :< / p >
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< pre class = "literal-block" >
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typedef < a href = "./next.html" class = "identifier" > next< / a > < iter> ::type j;
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< / 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" / >
< tbody valign = "top" >
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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 = "./forward-iterator.html" > Forward Iterator< / a > .< / p >
< / td >
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< / tr >
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< tr class = "field" > < th class = "field-name" > Precondition:< / th > < td class = "field-body" > < p class = "first" > < tt class = "literal" > < span class = "pre" > iter< / span > < / tt > is incrementable.< / p >
< / td >
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< / tr >
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< tr class = "field" > < th class = "field-name" > Semantics:< / th > < td class = "field-body" > < p class = "first" > < tt class = "literal" > < span class = "pre" > j< / span > < / tt > is an iterator pointing to the next element in the sequence, or
is past-the-end. If < tt class = "literal" > < span class = "pre" > iter< / span > < / tt > is a user-defined iterator, the
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library-provided default implementation is equivalent to< / p >
< pre class = "last literal-block" >
typedef iter::< a href = "./next.html" class = "identifier" > next< / a > j;
< / pre >
< / td >
< / tr >
< / tbody >
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< div class = "section" id = "id426" >
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< h3 > < a class = "subsection-title" href = "#complexity" name = "complexity" > Complexity< / a > < / h3 >
< p > Amortized constant time.< / p >
< / div >
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< div class = "section" id = "id427" >
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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 > < int,1> v;
typedef < a href = "./begin.html" class = "identifier" > begin< / a > < v> ::type first;
typedef < a href = "./end.html" class = "identifier" > end< / a > < v> ::type last;
< a href = "./assert.html" class = "identifier" > BOOST_MPL_ASSERT< / a > (( is_same< < a href = "./next.html" class = "identifier" > next< / a > < first> ::type, last > ));
< / pre >
< / div >
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< div class = "section" id = "id428" >
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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 = "./iterators.html" > Iterators< / a > , < a class = "reference internal" href = "./begin.html" > begin< / a > / < a class = "reference internal" href = "./end.html" > end< / a > , < a class = "reference internal" href = "./prior.html" > prior< / a > , < a class = "reference internal" href = "./deref.html" > deref< / a > < / p >
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<!-- Iterators/Iterator Metafunctions//prior |40 -->
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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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