50 lines
1.6 KiB
Plaintext
50 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_BINARY_SEARCH_HPP_INCLUDED
|
||
|
|
#define BOOST_RANGE_ALGORITHM_BINARY_SEARCH_HPP_INCLUDED
|
||
|
|
|
||
|
|
#include <boost/concept_check.hpp>
|
||
|
|
#include <boost/range/begin.hpp>
|
||
|
|
#include <boost/range/end.hpp>
|
||
|
|
#include <boost/range/concepts.hpp>
|
||
|
|
#include <algorithm>
|
||
|
|
|
||
|
|
namespace boost
|
||
|
|
{
|
||
|
|
namespace range
|
||
|
|
{
|
||
|
|
|
||
|
|
/// \brief template function binary_search
|
||
|
|
///
|
||
|
|
/// range-based version of the binary_search std algorithm
|
||
|
|
///
|
||
|
|
/// \pre ForwardRange is a model of the ForwardRangeConcept
|
||
|
|
/// \pre BinaryPredicate is a model of the BinaryPredicateConcept
|
||
|
|
template<class ForwardRange, class Value>
|
||
|
|
inline bool binary_search(const ForwardRange& rng, const Value& val)
|
||
|
|
{
|
||
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
||
|
|
return std::binary_search(boost::begin(rng), boost::end(rng), val);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \overload
|
||
|
|
template<class ForwardRange, class Value, class BinaryPredicate>
|
||
|
|
inline bool binary_search(const ForwardRange& rng, const Value& val,
|
||
|
|
BinaryPredicate pred)
|
||
|
|
{
|
||
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
||
|
|
return std::binary_search(boost::begin(rng), boost::end(rng), val, pred);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace range
|
||
|
|
using range::binary_search;
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#endif // include guard
|