mirror of https://github.com/axmolengine/axmol.git
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/// \file
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// Range v3 library
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//
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// Copyright Eric Niebler 2014-present
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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_ADJACENT_FIND_HPP
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#define RANGES_V3_ALGORITHM_ADJACENT_FIND_HPP
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#include <range/v3/range_fwd.hpp>
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#include <range/v3/functional/comparisons.hpp>
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#include <range/v3/functional/identity.hpp>
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#include <range/v3/functional/invoke.hpp>
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#include <range/v3/iterator/traits.hpp>
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#include <range/v3/range/access.hpp>
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#include <range/v3/range/concepts.hpp>
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#include <range/v3/range/dangling.hpp>
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#include <range/v3/range/traits.hpp>
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#include <range/v3/utility/static_const.hpp>
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#include <range/v3/detail/prologue.hpp>
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namespace ranges
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{
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/// \addtogroup group-algorithms
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/// @{
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RANGES_FUNC_BEGIN(adjacent_find)
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/// \brief function template \c adjacent_find
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///
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/// range-based version of the \c adjacent_find std algorithm
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///
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/// \pre `Rng` is a model of the `range` concept
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/// \pre `C` is a model of the `BinaryPredicate` concept
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template(typename I, typename S, typename C = equal_to, typename P = identity)(
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requires forward_iterator<I> AND sentinel_for<S, I> AND
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indirect_relation<C, projected<I, P>>)
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constexpr I RANGES_FUNC(adjacent_find)(I first, S last, C pred = C{}, P proj = P{})
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{
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if(first == last)
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return first;
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auto inext = first;
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for(; ++inext != last; first = inext)
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if(invoke(pred, invoke(proj, *first), invoke(proj, *inext)))
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return first;
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return inext;
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}
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/// \overload
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template(typename Rng, typename C = equal_to, typename P = identity)(
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requires forward_range<Rng> AND
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indirect_relation<C, projected<iterator_t<Rng>, P>>)
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constexpr borrowed_iterator_t<Rng> //
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RANGES_FUNC(adjacent_find)(Rng && rng, C pred = C{}, P proj = P{}) //
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{
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return (*this)(begin(rng), end(rng), std::move(pred), std::move(proj));
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}
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RANGES_FUNC_END(adjacent_find)
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namespace cpp20
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{
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using ranges::adjacent_find;
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}
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/// @}
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} // namespace ranges
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#include <range/v3/detail/epilogue.hpp>
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#endif // RANGE_ALGORITHM_ADJACENT_FIND_HPP
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