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59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// 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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