header_map_synop.pass.cpp (2205B)
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 // REQUIRES: c++experimental 12 // UNSUPPORTED: c++98, c++03 13 14 // <experimental/map> 15 16 // namespace std { namespace experimental { namespace pmr { 17 // template <class K, class V, class Compare = less<Key> > 18 // using map = 19 // ::std::map<K, V, Compare, polymorphic_allocator<pair<const K, V>>> 20 // 21 // template <class K, class V, class Compare = less<Key> > 22 // using multimap = 23 // ::std::multimap<K, V, Compare, polymorphic_allocator<pair<const K, V>>> 24 // 25 // }}} // namespace std::experimental::pmr 26 27 #include <experimental/map> 28 #include <experimental/memory_resource> 29 #include <type_traits> 30 #include <cassert> 31 32 namespace pmr = std::experimental::pmr; 33 34 int main() 35 { 36 using K = int; 37 using V = char; 38 using DC = std::less<int>; 39 using OC = std::greater<int>; 40 using P = std::pair<const K, V>; 41 { 42 using StdMap = std::map<K, V, DC, pmr::polymorphic_allocator<P>>; 43 using PmrMap = pmr::map<K, V>; 44 static_assert(std::is_same<StdMap, PmrMap>::value, ""); 45 } 46 { 47 using StdMap = std::map<K, V, OC, pmr::polymorphic_allocator<P>>; 48 using PmrMap = pmr::map<K, V, OC>; 49 static_assert(std::is_same<StdMap, PmrMap>::value, ""); 50 } 51 { 52 pmr::map<int, int> m; 53 assert(m.get_allocator().resource() == pmr::get_default_resource()); 54 } 55 { 56 using StdMap = std::multimap<K, V, DC, pmr::polymorphic_allocator<P>>; 57 using PmrMap = pmr::multimap<K, V>; 58 static_assert(std::is_same<StdMap, PmrMap>::value, ""); 59 } 60 { 61 using StdMap = std::multimap<K, V, OC, pmr::polymorphic_allocator<P>>; 62 using PmrMap = pmr::multimap<K, V, OC>; 63 static_assert(std::is_same<StdMap, PmrMap>::value, ""); 64 } 65 { 66 pmr::multimap<int, int> m; 67 assert(m.get_allocator().resource() == pmr::get_default_resource()); 68 } 69 }