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Returns the result type of find_if given the sequence and predicate types.
template< typename Sequence, typename Pred > struct find_if { typedef unspecified type; };
Table 1.50. Parameters
Parameter |
Requirement |
Description |
---|---|---|
Sequence |
A model of Forward Sequence |
Operation's argument |
Pred |
A model of MPL Lambda Expression |
Operation's arguments |
result_of::find_if<Sequence, Pred>::type
Return type: A model of the same iterator category as the iterators of Sequence.
Semantics: Returns an iterator to the first element in Sequence for which Pred evaluates to true. Returns result_of::end<Sequence>::type if there is no such element.
Linear. At most result_of::size<Sequence>::value comparisons.
#include <boost/fusion/algorithm/query/find_if.hpp> #include <boost/fusion/include/find_if.hpp>