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// 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
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