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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_LEXICOGRAPHICAL_COMPARE_HPP_INCLUDED
- #define BOOST_RANGE_ALGORITHM_LEXICOGRAPHICAL_COMPARE_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 lexicographic_compare
- ///
- /// range-based version of the lexicographic_compare std algorithm
- ///
- /// \pre SinglePassRange1 is a model of the SinglePassRangeConcept
- /// \pre SinglePassRange2 is a model of the SinglePassRangeConcept
- template<class SinglePassRange1, class SinglePassRange2>
- inline bool lexicographical_compare(const SinglePassRange1& rng1,
- const SinglePassRange2& rng2)
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
- return std::lexicographical_compare(
- boost::begin(rng1), boost::end(rng1),
- boost::begin(rng2), boost::end(rng2));
- }
- /// \overload
- template<class SinglePassRange1, class SinglePassRange2,
- class BinaryPredicate>
- inline bool lexicographical_compare(const SinglePassRange1& rng1,
- const SinglePassRange2& rng2,
- BinaryPredicate pred)
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
- return std::lexicographical_compare(
- boost::begin(rng1), boost::end(rng1),
- boost::begin(rng2), boost::end(rng2), pred);
- }
- } // namespace range
- using range::lexicographical_compare;
- } // namespace boost
- #endif // include guard
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