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103 lines
3.8 KiB
103 lines
3.8 KiB
4 months ago
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/*
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* Copyright 2014 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FRUIT_HASH_HELPERS_H
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#define FRUIT_HASH_HELPERS_H
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#include <fruit/impl/data_structures/arena_allocator.h>
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#include <fruit/impl/fruit-config.h>
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#if !IN_FRUIT_CPP_FILE
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// We don't want to include it in public headers to save some compile time.
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#error "hash_helpers included in non-cpp file."
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#endif
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#if FRUIT_USES_BOOST
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#include <boost/unordered_map.hpp>
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#include <boost/unordered_set.hpp>
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#else
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#include <unordered_map>
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#include <unordered_set>
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#endif
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namespace fruit {
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namespace impl {
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#if FRUIT_USES_BOOST
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template <typename T, typename Hasher = std::hash<T>, typename EqualityComparator = std::equal_to<T>>
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using HashSet = boost::unordered_set<T, Hasher, EqualityComparator>;
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template <typename T, typename Hasher = std::hash<T>, typename EqualityComparator = std::equal_to<T>>
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using HashSetWithArenaAllocator = boost::unordered_set<T, Hasher, EqualityComparator, ArenaAllocator<T>>;
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template <typename Key, typename Value, typename Hasher = std::hash<Key>>
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using HashMap = boost::unordered_map<Key, Value, Hasher>;
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template <typename Key, typename Value, typename Hasher = std::hash<Key>,
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typename EqualityComparator = std::equal_to<Key>>
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using HashMapWithArenaAllocator =
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boost::unordered_map<Key, Value, Hasher, EqualityComparator, ArenaAllocator<std::pair<const Key, Value>>>;
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#else
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template <typename T, typename Hasher = std::hash<T>, typename EqualityComparator = std::equal_to<T>>
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using HashSet = std::unordered_set<T, Hasher, EqualityComparator>;
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template <typename T, typename Hasher = std::hash<T>, typename EqualityComparator = std::equal_to<T>>
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using HashSetWithArenaAllocator = std::unordered_set<T, Hasher, EqualityComparator, ArenaAllocator<T>>;
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template <typename Key, typename Value, typename Hasher = std::hash<Key>>
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using HashMap = std::unordered_map<Key, Value, Hasher>;
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template <typename Key, typename Value, typename Hasher = std::hash<Key>,
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typename EqualityComparator = std::equal_to<Key>>
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using HashMapWithArenaAllocator =
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std::unordered_map<Key, Value, Hasher, EqualityComparator, ArenaAllocator<std::pair<const Key, Value>>>;
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#endif
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template <typename T>
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HashSet<T> createHashSet();
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template <typename T>
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HashSet<T> createHashSet(size_t capacity);
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template <typename T>
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HashSetWithArenaAllocator<T> createHashSetWithArenaAllocator(size_t capacity, MemoryPool& memory_pool);
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template <typename T, typename Hasher, typename EqualityComparator>
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HashSetWithArenaAllocator<T, Hasher, EqualityComparator>
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createHashSetWithArenaAllocatorAndCustomFunctors(size_t capacity, MemoryPool& memory_pool, Hasher, EqualityComparator);
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template <typename Key, typename Value>
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HashMap<Key, Value> createHashMap();
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template <typename Key, typename Value>
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HashMap<Key, Value> createHashMap(size_t capacity);
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template <typename Key, typename Value>
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HashMapWithArenaAllocator<Key, Value> createHashMapWithArenaAllocator(size_t capacity, MemoryPool& memory_pool);
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template <typename Key, typename Value, typename Hasher, typename EqualityComparator>
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HashMapWithArenaAllocator<Key, Value, Hasher, EqualityComparator>
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createHashMapWithArenaAllocatorAndCustomFunctors(size_t capacity, MemoryPool& memory_pool, Hasher, EqualityComparator);
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} // namespace impl
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} // namespace fruit
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#include <fruit/impl/util/hash_helpers.defn.h>
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#endif // FRUIT_HASH_HELPERS_H
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