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 // <vector> 11 12 // vector& operator=(vector&& c) 13 // noexcept( 14 // allocator_type::propagate_on_container_move_assignment::value && 15 // is_nothrow_move_assignable<allocator_type>::value); 16 17 // This tests a conforming extension 18 19 // UNSUPPORTED: c++98, c++03 20 21 #include <vector> 22 #include <cassert> 23 24 #include "test_allocator.h" 25 26 template <class T> 27 struct some_alloc 28 { 29 typedef T value_type; 30 some_alloc(const some_alloc&); 31 }; 32 33 template <class T> 34 struct some_alloc2 35 { 36 typedef T value_type; 37 38 some_alloc2() {} 39 some_alloc2(const some_alloc2&); 40 void deallocate(void*, unsigned) {} 41 42 typedef std::false_type propagate_on_container_move_assignment; 43 typedef std::true_type is_always_equal; 44 }; 45 46 template <class T> 47 struct some_alloc3 48 { 49 typedef T value_type; 50 51 some_alloc3() {} 52 some_alloc3(const some_alloc3&); 53 void deallocate(void*, unsigned) {} 54 55 typedef std::false_type propagate_on_container_move_assignment; 56 typedef std::false_type is_always_equal; 57 }; 58 59 int main() 60 { 61 { 62 typedef std::vector<bool> C; 63 static_assert(std::is_nothrow_move_assignable<C>::value, ""); 64 } 65 { 66 typedef std::vector<bool, test_allocator<bool>> C; 67 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 68 } 69 { 70 typedef std::vector<bool, other_allocator<bool>> C; 71 static_assert(std::is_nothrow_move_assignable<C>::value, ""); 72 } 73 { 74 typedef std::vector<bool, some_alloc<bool>> C; 75 #if TEST_STD_VER > 14 76 static_assert( std::is_nothrow_move_assignable<C>::value, ""); 77 #else 78 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 79 #endif 80 } 81 #if TEST_STD_VER > 14 82 { // POCMA false, is_always_equal true 83 typedef std::vector<bool, some_alloc2<bool>> C; 84 static_assert( std::is_nothrow_move_assignable<C>::value, ""); 85 } 86 { // POCMA false, is_always_equal false 87 typedef std::vector<bool, some_alloc3<bool>> C; 88 static_assert(!std::is_nothrow_move_assignable<C>::value, ""); 89 } 90 #endif 91 } 92