1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <vector>
// vector& operator=(vector&& c)
// noexcept(
// allocator_type::propagate_on_container_move_assignment::value &&
// is_nothrow_move_assignable<allocator_type>::value);
// This tests a conforming extension
// UNSUPPORTED: c++03
#include <vector>
#include <cassert>
#include "test_macros.h"
#include "test_allocator.h"
template <class T>
struct some_alloc
{
typedef T value_type;
some_alloc(const some_alloc&);
};
template <class T>
struct some_alloc2
{
typedef T value_type;
some_alloc2() {}
some_alloc2(const some_alloc2&);
void deallocate(void*, unsigned) {}
typedef std::false_type propagate_on_container_move_assignment;
typedef std::true_type is_always_equal;
};
template <class T>
struct some_alloc3
{
typedef T value_type;
some_alloc3() {}
some_alloc3(const some_alloc3&);
void deallocate(void*, unsigned) {}
typedef std::false_type propagate_on_container_move_assignment;
typedef std::false_type is_always_equal;
};
int main(int, char**)
{
#if defined(_LIBCPP_VERSION)
{
typedef std::vector<bool> C;
static_assert(std::is_nothrow_move_assignable<C>::value, "");
}
#endif // _LIBCPP_VERSION
{
typedef std::vector<bool, test_allocator<bool>> C;
static_assert(!std::is_nothrow_move_assignable<C>::value, "");
}
#if defined(_LIBCPP_VERSION)
{
typedef std::vector<bool, other_allocator<bool>> C;
static_assert(std::is_nothrow_move_assignable<C>::value, "");
}
#endif // _LIBCPP_VERSION
{
#if TEST_STD_VER > 14
#if defined(_LIBCPP_VERSION)
typedef std::vector<bool, some_alloc<bool>> C;
static_assert( std::is_nothrow_move_assignable<C>::value, "");
#endif // _LIBCPP_VERSION
#else
typedef std::vector<bool, some_alloc<bool>> C;
static_assert(!std::is_nothrow_move_assignable<C>::value, "");
#endif
}
#if TEST_STD_VER > 14
#if defined(_LIBCPP_VERSION)
{ // POCMA false, is_always_equal true
typedef std::vector<bool, some_alloc2<bool>> C;
static_assert( std::is_nothrow_move_assignable<C>::value, "");
}
#endif // _LIBCPP_VERSION
{ // POCMA false, is_always_equal false
typedef std::vector<bool, some_alloc3<bool>> C;
static_assert(!std::is_nothrow_move_assignable<C>::value, "");
}
#endif
return 0;
}
|
