at_c

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<<<<<<< .working Returns the result type of at_c ^[7] ======= Returns the result type of at_c ^[7] >>>>>>> .merge-right.r57125 .

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template<
    typename Seq,
    int M>
struct at_c
{
    typedef unspecified type;
};

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Table 1.26. Parameters

=======

Table 1.26. Parameters

=======

Table 1.30. Parameters

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Table 1.30. Parameters

=======

Table 1.30. Parameters

=======

Table 1.30. Parameters

=======

Table 1.30. Parameters

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Parameter	Requirement	Description
`Seq`	A model of Forward Sequence	Argument sequence
`M`	Positive integer index	Index of element

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

result_of::at_c<Seq, M>::type

Return type: Any type

Semantics: Returns the result type of using at_c to access the Mth element of Seq.

Header

#include <boost/fusion/sequence/intrinsic/at.hpp>
#include <boost/fusion/include/at.hpp>

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typedef vector<int,float,char> vec;
BOOST_MPL_ASSERT((boost::is_same<result_of::at_c<vec, 1>::type, float&>));

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^[7] result_of::at_c reflects the actual return type of the function at_c. Sequence(s) typically return references to its elements via the at_c function. If you want to get the actual element type, use result_of::value_at_c =======

^[7] =======

^[7] >>>>>>> .merge-right.r58559 >>>>>>> .merge-right.r58549 >>>>>>> .merge-right.r58299 >>>>>>> .merge-right.r57337 >>>>>>> .merge-right.r57242 result_of::at_c reflects the actual return type of the function at_c. Sequence(s) typically return references to its elements via the at_c function. If you want to get the actual element type, use result_of::value_at_c >>>>>>> .merge-right.r57125

at_c

Expression =======

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

Header