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52066eae | 1 | // { dg-do compile { target c++11 } } |
677aad9c | 2 | |
99dee823 | 3 | // Copyright (C) 2011-2021 Free Software Foundation, Inc. |
677aad9c JW |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // test that propagate_on_container_xxx is true iff it is true for | |
21 | // any of the outer or inner allocators | |
22 | ||
23 | #include <scoped_allocator> | |
24 | ||
25 | using std::scoped_allocator_adaptor; | |
26 | ||
27 | typedef short test_type; | |
28 | ||
29 | template<typename T> | |
30 | struct minimal_allocator | |
31 | { | |
32 | typedef T value_type; | |
33 | minimal_allocator(); | |
34 | template <typename U> | |
35 | minimal_allocator(const minimal_allocator<U>&); | |
36 | T* allocate(std::size_t); | |
37 | void deallocate(T*, std::size_t); | |
38 | }; | |
39 | ||
40 | template<typename T, bool copy, bool move, bool swap> | |
41 | struct test_allocator : minimal_allocator<T> | |
42 | { | |
79466838 JW |
43 | template<typename U> |
44 | struct rebind | |
45 | { using other = test_allocator<U, copy, move, swap>; }; | |
46 | ||
677aad9c | 47 | struct propagate_on_container_copy_assignment |
a2b5fdcb | 48 | : std::integral_constant<bool, copy> { }; |
677aad9c JW |
49 | |
50 | struct propagate_on_container_move_assignment | |
a2b5fdcb | 51 | : std::integral_constant<bool, move> { }; |
677aad9c JW |
52 | |
53 | struct propagate_on_container_swap | |
a2b5fdcb | 54 | : std::integral_constant<bool, swap> { }; |
677aad9c JW |
55 | }; |
56 | ||
57 | template<typename A> | |
58 | constexpr bool prop_on_copy() | |
59 | { | |
60 | typedef typename A::propagate_on_container_copy_assignment type; | |
61 | return type::value; | |
62 | } | |
63 | ||
64 | template<typename A> | |
65 | constexpr bool prop_on_move() | |
66 | { | |
67 | typedef typename A::propagate_on_container_move_assignment type; | |
68 | return type::value; | |
69 | } | |
70 | ||
71 | template<typename A> | |
72 | constexpr bool prop_on_swap() | |
73 | { | |
74 | typedef typename A::propagate_on_container_swap type; | |
75 | return type::value; | |
76 | } | |
77 | ||
78 | template<typename A, bool C, bool M, bool S> | |
79 | constexpr bool test1() | |
80 | { | |
81 | static_assert( prop_on_copy<A>() == C, "copy" ); | |
82 | static_assert( prop_on_move<A>() == M, "move" ); | |
83 | static_assert( prop_on_swap<A>() == S, "swap" ); | |
84 | return true; | |
85 | } | |
86 | ||
87 | template<bool C, bool M, bool S> | |
88 | constexpr bool test2() | |
89 | { | |
90 | typedef minimal_allocator<test_type> base_alloc; | |
91 | typedef test_allocator<test_type, C, M, S> test_alloc; | |
92 | typedef scoped_allocator_adaptor<base_alloc, test_alloc> scoped1; | |
93 | typedef scoped_allocator_adaptor<test_alloc, base_alloc> scoped2; | |
94 | typedef scoped_allocator_adaptor<test_alloc, test_alloc> scoped3; | |
95 | return test1<scoped1, C, M, S>() | |
96 | && test1<scoped2, C, M, S>() | |
97 | && test1<scoped3, C, M, S>(); | |
98 | } | |
99 | ||
100 | static_assert( test2<false, false, false>(), "never propagate" ); | |
101 | static_assert( test2<true, false, false>(), "propagate on copy" ); | |
102 | static_assert( test2<false, true, false>(), "propagate on move" ); | |
103 | static_assert( test2<false, false, true>(), "propagate on swap" ); | |
104 | static_assert( test2<true, true, false>(), "propagate on copy & move" ); | |
105 | static_assert( test2<true, false, true>(), "propagate on copy & swap" ); | |
106 | static_assert( test2<false, true, true>(), "propagate on move & swap" ); | |
107 | static_assert( test2<true, true, true>(), "always propagate" ); | |
108 |