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Returns the result type of size.
template<typename Seq> struct size { typedef unspecified type; };
Table 1.24. Parameters
|
Parameter |
Requirement |
Description |
|---|---|---|
|
|
A model of Forward Sequence |
Argument sequence |
result_of::size<Seq>::type
Return type: An MPL Integral Constant.
Semantics: Returns the number of elements
in Seq.
/sequence/intrinsic/size.hpp>
typedefvector<int,float,char> vec; typedefresult_of::size<vec>::type size_mpl_integral_constant; BOOST_MPL_ASSERT_RELATION(size_mpl_integral_constant::value, ==, 3);