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Returns the actual type at a given index from the Sequence.
template< typename Seq, int N> struct value_at_c { typedef unspecified type; };
Table 1.31. Parameters
| Parameter | Requirement | Description | 
|---|---|---|
| 
                       | A model of Random Access Sequence | Argument sequence | 
| 
                       | Positive integer index | Index of element | 
result_of::value_at_c<Seq, N>::type
Return type: Any type
            Semantics: Returns the actual type at
            the Nth element of Seq.
          
#include <boost/fusion/sequence/intrinsic/value_at.hpp> #include <boost/fusion/include/value_at.hpp>
typedefvector<int,float,char> vec; BOOST_MPL_ASSERT((boost::is_same<result_of::value_at_c<vec, 1>::type, float>));