1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <unordered_map> 11 12// void swap(unordered_map& c) 13// noexcept(!allocator_type::propagate_on_container_swap::value || 14// __is_nothrow_swappable<allocator_type>::value); 15 16// This tests a conforming extension 17 18#include <unordered_map> 19#include <cassert> 20 21#include "../../../MoveOnly.h" 22#include "test_allocator.h" 23 24template <class T> 25struct some_comp 26{ 27 typedef T value_type; 28 29 some_comp() {} 30 some_comp(const some_comp&) {} 31}; 32 33template <class T> 34struct some_hash 35{ 36 typedef T value_type; 37 some_hash() {} 38 some_hash(const some_hash&); 39}; 40 41int main() 42{ 43#if __has_feature(cxx_noexcept) 44 { 45 typedef std::unordered_map<MoveOnly, MoveOnly> C; 46 C c1, c2; 47 static_assert(noexcept(swap(c1, c2)), ""); 48 } 49 { 50 typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>, 51 std::equal_to<MoveOnly>, test_allocator<std::pair<const MoveOnly, MoveOnly>>> C; 52 C c1, c2; 53 static_assert(noexcept(swap(c1, c2)), ""); 54 } 55 { 56 typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>, 57 std::equal_to<MoveOnly>, other_allocator<std::pair<const MoveOnly, MoveOnly>>> C; 58 C c1, c2; 59 static_assert(noexcept(swap(c1, c2)), ""); 60 } 61 { 62 typedef std::unordered_map<MoveOnly, MoveOnly, some_hash<MoveOnly>> C; 63 C c1, c2; 64 static_assert(!noexcept(swap(c1, c2)), ""); 65 } 66 { 67 typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>, 68 some_comp<MoveOnly>> C; 69 C c1, c2; 70 static_assert(!noexcept(swap(c1, c2)), ""); 71 } 72#endif 73} 74