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58 lines
2.1 KiB
58 lines
2.1 KiB
// Copyright Neil Groves 2009. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// |
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// For more information, see http://www.boost.org/libs/range/ |
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// |
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#ifndef BOOST_RANGE_ALGORITHM_LEXICOGRAPHICAL_COMPARE_HPP_INCLUDED |
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#define BOOST_RANGE_ALGORITHM_LEXICOGRAPHICAL_COMPARE_HPP_INCLUDED |
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#include <boost/concept_check.hpp> |
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#include <boost/range/begin.hpp> |
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#include <boost/range/end.hpp> |
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#include <boost/range/concepts.hpp> |
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#include <algorithm> |
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namespace boost |
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{ |
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namespace range |
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{ |
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/// \brief template function lexicographic_compare |
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/// |
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/// range-based version of the lexicographic_compare std algorithm |
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/// |
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/// \pre SinglePassRange1 is a model of the SinglePassRangeConcept |
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/// \pre SinglePassRange2 is a model of the SinglePassRangeConcept |
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template<class SinglePassRange1, class SinglePassRange2> |
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inline bool lexicographical_compare(const SinglePassRange1& rng1, |
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const SinglePassRange2& rng2) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> )); |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> )); |
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return std::lexicographical_compare( |
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boost::begin(rng1), boost::end(rng1), |
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boost::begin(rng2), boost::end(rng2)); |
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} |
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/// \overload |
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template<class SinglePassRange1, class SinglePassRange2, |
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class BinaryPredicate> |
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inline bool lexicographical_compare(const SinglePassRange1& rng1, |
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const SinglePassRange2& rng2, |
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BinaryPredicate pred) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> )); |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> )); |
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return std::lexicographical_compare( |
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boost::begin(rng1), boost::end(rng1), |
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boost::begin(rng2), boost::end(rng2), pred); |
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} |
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} // namespace range |
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using range::lexicographical_compare; |
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} // namespace boost |
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#endif // include guard
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