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1 // Copyright (C) 2013-2016 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 <set>
21 #include <testsuite_hooks.h>
22 #include <testsuite_allocator.h>
23
24 struct T { int i; };
25
26 bool operator<(T l, T r) { return l.i < r.i; }
27
28 using Cmp = std::less<T>;
29
30 using __gnu_test::propagating_allocator;
31
32 void test01()
33 {
34 bool test __attribute__((unused)) = true;
35 typedef propagating_allocator<T, false> alloc_type;
36 typedef std::multiset<T, Cmp, alloc_type> test_type;
37 test_type v1(alloc_type(1));
38 v1 = { test_type::value_type{} };
39 test_type v2(alloc_type(2));
40 v2 = { test_type::value_type{} };
41 v2 = std::move(v1);
42 VERIFY(1 == v1.get_allocator().get_personality());
43 VERIFY(2 == v2.get_allocator().get_personality());
44 }
45
46 void test02()
47 {
48 bool test __attribute__((unused)) = true;
49 typedef propagating_allocator<T, true> alloc_type;
50 typedef std::multiset<T, Cmp, alloc_type> test_type;
51 test_type v1(alloc_type(1));
52 v1 = { test_type::value_type{} };
53 auto it = v1.begin();
54 test_type v2(alloc_type(2));
55 v2 = { test_type::value_type{} };
56 v2 = std::move(v1);
57 VERIFY(0 == v1.get_allocator().get_personality());
58 VERIFY(1 == v2.get_allocator().get_personality());
59 VERIFY( it == v2.begin() );
60 }
61
62 void test03()
63 {
64 bool test __attribute__((unused)) = true;
65
66 using namespace __gnu_test;
67
68 typedef propagating_allocator<int, false, tracker_allocator<int>> alloc_type;
69 typedef std::multiset<int, std::less<int>, alloc_type> test_type;
70
71 tracker_allocator_counter::reset();
72
73 test_type v1(alloc_type(1));
74 v1 = { 0, 0 };
75
76 test_type v2(alloc_type(2));
77 v2 = { 2, 2 };
78
79 auto allocs = tracker_allocator_counter::get_allocation_count();
80 auto constructs = tracker_allocator_counter::get_construct_count();
81
82 // Check no allocation on move assignment with non propagating allocators.
83 v1 = std::move(v2);
84
85 VERIFY( 1 == v1.get_allocator().get_personality() );
86 VERIFY( 2 == v2.get_allocator().get_personality() );
87
88 VERIFY( tracker_allocator_counter::get_allocation_count() == allocs );
89 VERIFY( tracker_allocator_counter::get_construct_count() == constructs + 2 );
90 }
91
92 int main()
93 {
94 test01();
95 test02();
96 test03();
97 return 0;
98 }