Description

Returns the result type of back.

Synopsis

template<typename Seq>
struct back
{
    typedef unspecified type;
};

Expression Semantics

result_of::back<Seq>::type

Return type: Any type

Semantics: The type returned by dereferencing an iterator to the last element in the sequence. Equivalent to result_of::deref<result_of::prior<result_of::end<Seq>::type>::type>::type.

Header

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

Example

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