51 lines
1.6 KiB
Plaintext
51 lines
1.6 KiB
Plaintext
// Copyright Neil Groves 2009. Use, modification and
|
|
// distribution is subject to the Boost Software License, Version
|
|
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
//
|
|
// For more information, see http://www.boost.org/libs/range/
|
|
//
|
|
#ifndef BOOST_RANGE_ALGORITHM_COUNT_HPP_INCLUDED
|
|
#define BOOST_RANGE_ALGORITHM_COUNT_HPP_INCLUDED
|
|
|
|
#include <boost/concept_check.hpp>
|
|
#include <boost/range/begin.hpp>
|
|
#include <boost/range/end.hpp>
|
|
#include <boost/range/concepts.hpp>
|
|
#include <boost/range/difference_type.hpp>
|
|
#include <algorithm>
|
|
|
|
namespace boost
|
|
{
|
|
namespace range
|
|
{
|
|
|
|
/// \brief template function count
|
|
///
|
|
/// range-based version of the count std algorithm
|
|
///
|
|
/// \pre SinglePassRange is a model of the SinglePassRangeConcept
|
|
template< class SinglePassRange, class Value >
|
|
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type
|
|
count(SinglePassRange& rng, const Value& val)
|
|
{
|
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
|
|
return std::count(boost::begin(rng), boost::end(rng), val);
|
|
}
|
|
|
|
/// \overload
|
|
template< class SinglePassRange, class Value >
|
|
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange const>::type
|
|
count(const SinglePassRange& rng, const Value& val)
|
|
{
|
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
|
|
return std::count(boost::begin(rng), boost::end(rng), val);
|
|
}
|
|
|
|
} // namespace range
|
|
using range::count;
|
|
} // namespace boost
|
|
|
|
#endif // include guard
|