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Boost.RangeEx merged into Boost.Range

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[SVN r60897]
This commit is contained in:
Neil Groves
2010-03-28 16:08:35 +00:00
parent 1461479a17
commit b0d1db7c2e
471 changed files with 48610 additions and 2065 deletions
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include/boost/range/algorithm/count_if.hpp Executable file
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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_IF_HPP_INCLUDED
#define BOOST_RANGE_ALGORITHM_COUNT_IF_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
{
/// \brief template function count_if
///
/// range-based version of the count_if std algorithm
///
/// \pre SinglePassRange is a model of the SinglePassRangeConcept
/// \pre UnaryPredicate is a model of the UnaryPredicateConcept
template< class SinglePassRange, class UnaryPredicate >
inline BOOST_DEDUCED_TYPENAME boost::range_difference<SinglePassRange>::type
count_if(SinglePassRange& rng, UnaryPredicate pred)
{
boost::function_requires< SinglePassRangeConcept<SinglePassRange> >();
return std::count_if(boost::begin(rng), boost::end(rng), pred);
}
/// \overload
template< class SinglePassRange, class UnaryPredicate >
inline BOOST_DEDUCED_TYPENAME boost::range_difference<const SinglePassRange>::type
count_if(const SinglePassRange& rng, UnaryPredicate pred)
{
boost::function_requires< SinglePassRangeConcept<SinglePassRange> >();
return std::count_if(boost::begin(rng), boost::end(rng), pred);
}
}
#endif // include guard