// 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 |