value_of

Description

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value_of

Description

>>>>>>> .merge-right.r57125

Returns the type stored at the position of an iterator.

<<<<<<< .working

Synopsis

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Synopsis

>>>>>>> .merge-right.r57125

template<
    typename I
    >
struct value_of
{
    typedef unspecified type;
};

<<<<<<< .working <<<<<<< .working <<<<<<< .working <<<<<<< .working <<<<<<< .working <<<<<<< .working

Table 1.11. Parameters

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Table 1.11. Parameters

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Table 1.12. Parameters

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Table 1.12. Parameters

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Table 1.12. Parameters

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Table 1.12. Parameters

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Table 1.12. Parameters

>>>>>>> .merge-right.r58559 >>>>>>> .merge-right.r58549 >>>>>>> .merge-right.r58299 >>>>>>> .merge-right.r57337 >>>>>>> .merge-right.r57242

>>>>>>> .merge-right.r57125

Parameter	Requirement	Description
`I`	Model of Forward Iterator	Operation's argument

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Expression =======

Expression >>>>>>> .merge-right.r57125 Semantics

result_of::value_of<I>::type

Return type: Any type

Semantics: Returns the type stored in a sequence at iterator position I.

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Header

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Header

>>>>>>> .merge-right.r57125

#include <boost/fusion/iterator/value_of.hpp>
#include <boost/fusion/include/value_of.hpp>

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Example

typedef vector<int,int&,const int&> vec;
typedef result_of::begin<vec>::type first;
typedef result_of::next<first>::type second;
typedef result_of::next<second>::type third;
=======


          Example
        
typedef vector<int,int&,const int&> vec;
typedef result_of::begin<vec>::type first;
typedef result_of::next<first>::type second;
typedef result_of::next<second>::type third;
>>>>>>> .merge-right.r57125

BOOST_MPL_ASSERT((boost::is_same<result_of::value_of<first>::type, int>));
BOOST_MPL_ASSERT((boost::is_same<result_of::value_of<second>::type, int&>));
BOOST_MPL_ASSERT((boost::is_same<result_of::value_of<third>::type, const int&>));