| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // REQUIRES: c++experimental |
| // UNSUPPORTED: c++98, c++03 |
| |
| // <experimental/unordered_map> |
| |
| // namespace std { namespace experimental { namespace pmr { |
| // template <class K, class V, class H = hash<K>, class P = equal_to<K> > |
| // using unordered_map = |
| // ::std::unordered_map<K, V, H, P, polymorphic_allocator<pair<const K, V>>> |
| // |
| // template <class K, class V, class H = hash<K>, class P = equal_to<K> > |
| // using unordered_multimap = |
| // ::std::unordered_multimap<K, V, H, P, polymorphic_allocator<pair<const K, V>>> |
| // |
| // }}} // namespace std::experimental::pmr |
| |
| #include <experimental/unordered_map> |
| #include <experimental/memory_resource> |
| #include <type_traits> |
| #include <cassert> |
| |
| namespace pmr = std::experimental::pmr; |
| |
| template <class T> |
| struct MyHash : std::hash<T> {}; |
| |
| template <class T> |
| struct MyPred : std::equal_to<T> {}; |
| |
| int main() |
| { |
| using K = int; |
| using V = char; |
| using DH = std::hash<K>; |
| using MH = MyHash<K>; |
| using DP = std::equal_to<K>; |
| using MP = MyPred<K>; |
| using P = std::pair<const K, V>; |
| { |
| using StdMap = std::unordered_map<K, V, DH, DP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_map<K, V>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| using StdMap = std::unordered_map<K, V, MH, DP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_map<K, V, MH>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| using StdMap = std::unordered_map<K, V, MH, MP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_map<K, V, MH, MP>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| pmr::unordered_map<int, int> m; |
| assert(m.get_allocator().resource() == pmr::get_default_resource()); |
| } |
| { |
| using StdMap = std::unordered_multimap<K, V, DH, DP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_multimap<K, V>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| using StdMap = std::unordered_multimap<K, V, MH, DP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_multimap<K, V, MH>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| using StdMap = std::unordered_multimap<K, V, MH, MP, pmr::polymorphic_allocator<P>>; |
| using PmrMap = pmr::unordered_multimap<K, V, MH, MP>; |
| static_assert(std::is_same<StdMap, PmrMap>::value, ""); |
| } |
| { |
| pmr::unordered_multimap<int, int> m; |
| assert(m.get_allocator().resource() == pmr::get_default_resource()); |
| } |
| } |