1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 // UNSUPPORTED: c++98, c++03 12 13 // <experimental/unordered_set> 14 15 // namespace std { namespace experimental { namespace pmr { 16 // template <class V, class H = hash<V>, class P = equal_to<V> > 17 // using unordered_set = 18 // ::std::unordered_set<V, H, P, polymorphic_allocator<V>> 19 // 20 // template <class V, class H = hash<V>, class P = equal_to<V> > 21 // using unordered_multiset = 22 // ::std::unordered_multiset<V, H, P, polymorphic_allocator<V>> 23 // 24 // }}} // namespace std::experimental::pmr 25 26 #include <experimental/unordered_set> 27 #include <experimental/memory_resource> 28 #include <type_traits> 29 #include <cassert> 30 31 namespace pmr = std::experimental::pmr; 32 33 template <class T> 34 struct MyHash : std::hash<T> {}; 35 36 template <class T> 37 struct MyPred : std::equal_to<T> {}; 38 39 int main() 40 { 41 using V = char; 42 using DH = std::hash<V>; 43 using MH = MyHash<V>; 44 using DP = std::equal_to<V>; 45 using MP = MyPred<V>; 46 { 47 using StdSet = std::unordered_set<V, DH, DP, pmr::polymorphic_allocator<V>>; 48 using PmrSet = pmr::unordered_set<V>; 49 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 50 } 51 { 52 using StdSet = std::unordered_set<V, MH, DP, pmr::polymorphic_allocator<V>>; 53 using PmrSet = pmr::unordered_set<V, MH>; 54 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 55 } 56 { 57 using StdSet = std::unordered_set<V, MH, MP, pmr::polymorphic_allocator<V>>; 58 using PmrSet = pmr::unordered_set<V, MH, MP>; 59 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 60 } 61 { 62 pmr::unordered_set<int, int> m; 63 assert(m.get_allocator().resource() == pmr::get_default_resource()); 64 } 65 { 66 using StdSet = std::unordered_multiset<V, DH, DP, pmr::polymorphic_allocator<V>>; 67 using PmrSet = pmr::unordered_multiset<V>; 68 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 69 } 70 { 71 using StdSet = std::unordered_multiset<V, MH, DP, pmr::polymorphic_allocator<V>>; 72 using PmrSet = pmr::unordered_multiset<V, MH>; 73 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 74 } 75 { 76 using StdSet = std::unordered_multiset<V, MH, MP, pmr::polymorphic_allocator<V>>; 77 using PmrSet = pmr::unordered_multiset<V, MH, MP>; 78 static_assert(std::is_same<StdSet, PmrSet>::value, ""); 79 } 80 { 81 pmr::unordered_multiset<int, int> m; 82 assert(m.get_allocator().resource() == pmr::get_default_resource()); 83 } 84 } 85
