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Returns the result type of back.
template<typename Seq> struct back { typedef unspecified type; };
Table 1.27. Parameters
|
Parameter |
Requirement |
Description |
|---|---|---|
|
|
A model of Forward Sequence |
Argument sequence |
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
#include <boost/fusion/sequence/intrinsic/back.hpp> #include <boost/fusion/include/back.hpp>
typedefvector<int,char> vec; BOOST_MPL_ASSERT((boost::is_same<result_of::back<vec>::type, char&>));