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59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License as published by the
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* Free Software Foundation; either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef IteratorPair_h__
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#define IteratorPair_h__
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#include "Define.h"
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#include <utility>
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namespace Acore
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{
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/**
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* @class IteratorPair
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*
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* @brief Utility class to enable range for loop syntax for multimap.equal_range uses
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*/
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template<class iterator>
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class IteratorPair
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{
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public:
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constexpr IteratorPair() : _iterators() { }
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constexpr IteratorPair(iterator first, iterator second) : _iterators(first, second) { }
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constexpr IteratorPair(std::pair<iterator, iterator> iterators) : _iterators(iterators) { }
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constexpr iterator begin() const { return _iterators.first; }
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constexpr iterator end() const { return _iterators.second; }
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private:
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std::pair<iterator, iterator> _iterators;
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};
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namespace Containers
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{
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template<class M>
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inline auto MapEqualRange(M& map, typename M::key_type const& key) -> IteratorPair<decltype(map.begin())>
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{
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return { map.equal_range(key) };
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}
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}
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//! namespace Containers
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}
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//! namespace Acore
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#endif // IteratorPair_h__
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