1 // Copyright (C) 2011-2020 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
17
18 // { dg-do run { target c++11 } }
19
20 #include <vector>
21 #include <testsuite_hooks.h>
22 #include <testsuite_allocator.h>
23
24 struct T { int i; };
25
26 using __gnu_test::propagating_allocator;
27
28 // It is undefined behaviour to swap() containers wth unequal allocators
29 // if the allocator doesn't propagate, so ensure the allocators compare
30 // equal, while still being able to test propagation via get_personality().
31 bool
operator ==(const propagating_allocator<T,false> &,const propagating_allocator<T,false> &)32 operator==(const propagating_allocator<T, false>&,
33 const propagating_allocator<T, false>&)
34 {
35 return true;
36 }
37
38 bool
operator !=(const propagating_allocator<T,false> &,const propagating_allocator<T,false> &)39 operator!=(const propagating_allocator<T, false>&,
40 const propagating_allocator<T, false>&)
41 {
42 return false;
43 }
44
test01()45 void test01()
46 {
47 typedef propagating_allocator<T, false> alloc_type;
48 typedef std::vector<T, alloc_type> test_type;
49 test_type v1(alloc_type(1));
50 v1.push_back(T());
51 test_type v2(alloc_type(2));
52 v2.push_back(T());
53 std::swap(v1, v2);
54 VERIFY(1 == v1.get_allocator().get_personality());
55 VERIFY(2 == v2.get_allocator().get_personality());
56 // swap back so assertions in uneq_allocator::deallocate don't fail
57 std::swap(v1, v2);
58 }
59
test02()60 void test02()
61 {
62 typedef propagating_allocator<T, true> alloc_type;
63 typedef std::vector<T, alloc_type> test_type;
64 test_type v1(alloc_type(1));
65 v1.push_back(T());
66 test_type v2(alloc_type(2));
67 v2.push_back(T());
68 std::swap(v1, v2);
69 VERIFY(2 == v1.get_allocator().get_personality());
70 VERIFY(1 == v2.get_allocator().get_personality());
71 }
72
main()73 int main()
74 {
75 test01();
76 test02();
77 return 0;
78 }
79