move_assign_noexcept.pass.cpp revision 06086258d3d8c48a916ec51c33e1ad8f46821b81
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// unordered_map& operator=(unordered_map&& c) 13// noexcept( 14// allocator_type::propagate_on_container_move_assignment::value && 15// is_nothrow_move_assignable<allocator_type>::value && 16// is_nothrow_move_assignable<key_compare>::value); 17 18// This tests a conforming extension 19 20#include <unordered_map> 21#include <cassert> 22 23#include "../../../MoveOnly.h" 24#include "test_allocator.h" 25 26template <class T> 27struct some_comp 28{ 29 typedef T value_type; 30 some_comp& operator=(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 some_hash& operator=(const some_hash&); 40}; 41 42int main() 43{ 44#if __has_feature(cxx_noexcept) 45 { 46 typedef std::unordered_map<MoveOnly, MoveOnly> C; 47 static_assert(std::is_nothrow_move_assignable<C>::value, ""); 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 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 53 } 54 { 55 typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>, 56 std::equal_to<MoveOnly>, other_allocator<std::pair<const MoveOnly, MoveOnly>>> C; 57 static_assert(std::is_nothrow_move_assignable<C>::value, ""); 58 } 59 { 60 typedef std::unordered_map<MoveOnly, MoveOnly, some_hash<MoveOnly>> C; 61 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 62 } 63 { 64 typedef std::unordered_map<MoveOnly, MoveOnly, std::hash<MoveOnly>, 65 some_comp<MoveOnly>> C; 66 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 67 } 68#endif 69} 70