File indexing completed on 2025-01-18 09:51:14
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0009 #ifndef BOOST_RANGE_ALGORITHM_COUNT_IF_HPP_INCLUDED
0010 #define BOOST_RANGE_ALGORITHM_COUNT_IF_HPP_INCLUDED
0011
0012 #include <boost/concept_check.hpp>
0013 #include <boost/range/begin.hpp>
0014 #include <boost/range/end.hpp>
0015 #include <boost/range/concepts.hpp>
0016 #include <boost/range/difference_type.hpp>
0017 #include <algorithm>
0018
0019 namespace boost
0020 {
0021 namespace range
0022 {
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0030 template< class SinglePassRange, class UnaryPredicate >
0031 inline BOOST_DEDUCED_TYPENAME boost::range_difference<SinglePassRange>::type
0032 count_if(SinglePassRange& rng, UnaryPredicate pred)
0033 {
0034 BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
0035 return std::count_if(boost::begin(rng), boost::end(rng), pred);
0036 }
0037
0038
0039 template< class SinglePassRange, class UnaryPredicate >
0040 inline BOOST_DEDUCED_TYPENAME boost::range_difference<const SinglePassRange>::type
0041 count_if(const SinglePassRange& rng, UnaryPredicate pred)
0042 {
0043 BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
0044 return std::count_if(boost::begin(rng), boost::end(rng), pred);
0045 }
0046
0047 }
0048 using range::count_if;
0049 }
0050
0051 #endif