| // 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 |