62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
/// \file
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// Range v3 library
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//
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// Copyright Eric Niebler 2014
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// Copyright Casey Carter 2016
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// 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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// Project home: https://github.com/ericniebler/range-v3
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//
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#ifndef RANGES_V3_ALGORITHM_LOWER_BOUND_HPP
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#define RANGES_V3_ALGORITHM_LOWER_BOUND_HPP
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#include <range/v3/range_fwd.hpp>
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#include <range/v3/begin_end.hpp>
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#include <range/v3/distance.hpp>
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#include <range/v3/range_concepts.hpp>
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#include <range/v3/range_traits.hpp>
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#include <range/v3/algorithm/partition_point.hpp>
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#include <range/v3/algorithm/aux_/lower_bound_n.hpp>
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#include <range/v3/utility/functional.hpp>
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#include <range/v3/utility/iterator_traits.hpp>
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#include <range/v3/utility/static_const.hpp>
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namespace ranges
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{
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inline namespace v3
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{
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/// \addtogroup group-algorithms
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/// @{
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struct lower_bound_fn
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{
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template<typename I, typename S, typename V, typename C = ordered_less, typename P = ident,
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CONCEPT_REQUIRES_(Sentinel<S, I>() && BinarySearchable<I, V, C, P>())>
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I operator()(I begin, S end, V const &val, C pred = C{}, P proj = P{}) const
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{
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return partition_point(std::move(begin), std::move(end),
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detail::make_lower_bound_predicate(pred, val), std::move(proj));
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}
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template<typename Rng, typename V, typename C = ordered_less, typename P = ident,
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typename I = iterator_t<Rng>,
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CONCEPT_REQUIRES_(Range<Rng>() && BinarySearchable<I, V, C, P>())>
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safe_iterator_t<Rng> operator()(Rng &&rng, V const &val, C pred = C{}, P proj = P{}) const
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{
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return partition_point(rng,
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detail::make_lower_bound_predicate(pred, val), std::move(proj));
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}
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};
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/// \sa `lower_bound_fn`
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/// \ingroup group-algorithms
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RANGES_INLINE_VARIABLE(with_braced_init_args<lower_bound_fn>, lower_bound)
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/// @}
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} // namespace v3
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} // namespace ranges
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#endif // include guard
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