57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
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/*==============================================================================
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Copyright (c) 2010-2011 Bryce Lelbach
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#ifndef BOOST_DETAIL_SORTED_HPP
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#define BOOST_DETAIL_SORTED_HPP
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#include <boost/detail/iterator.hpp>
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#include <functional>
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namespace boost {
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namespace detail {
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template<class Iterator, class Comp>
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inline Iterator is_sorted_until (Iterator first, Iterator last, Comp c) {
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if (first == last)
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return last;
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Iterator it = first; ++it;
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for (; it != last; first = it, ++it)
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if (c(*it, *first))
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return it;
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return it;
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}
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template<class Iterator>
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inline Iterator is_sorted_until (Iterator first, Iterator last) {
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typedef typename boost::detail::iterator_traits<Iterator>::value_type
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value_type;
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typedef std::less<value_type> c;
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return ::boost::detail::is_sorted_until(first, last, c());
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}
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template<class Iterator, class Comp>
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inline bool is_sorted (Iterator first, Iterator last, Comp c) {
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return ::boost::detail::is_sorted_until(first, last, c) == last;
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}
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template<class Iterator>
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inline bool is_sorted (Iterator first, Iterator last) {
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return ::boost::detail::is_sorted_until(first, last) == last;
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}
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} // detail
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} // boost
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#endif // BOOST_DETAIL_SORTED_HPP
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