|  | Home | Libraries | People | FAQ | More | 
            Returns the result type of filter given the sequence type
            and type to retain.
          
template< typename Sequence, typename T > struct filter { typedef unspecified type; };
Table 1.87. Parameter
| Parameter | Requirement | Description | 
|---|---|---|
| 
                       | A model of Forward Sequence | Operation's argument | 
| 
                       | Any type | Type to retain | 
result_of::filter<Sequence, T>::type
Return type:
Sequence
                implements the Associative
                Sequence model.
              
            Semantics: Returns a sequence containing
            the elements of Sequence
            that are of type T. Equivalent
            to result_of::filter_if<Sequence,
            boost::is_same<mpl::_, T> >::type
Constant.
#include <boost/fusion/algorithm/transformation/filter.hpp> #include <boost/fusion/include/filter.hpp>