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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
// Copyright (C) 2015-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++11 } }
// COW strings don't support C++11 allocator propagation:
// { dg-require-effective-target cxx11_abi }
#include <string>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
#include <ext/throw_allocator.h>
using C = char;
const C c = 'a';
using traits = std::char_traits<C>;
using __gnu_test::propagating_allocator;
void test01()
{
typedef propagating_allocator<C, false> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1(alloc_type(1));
v1.assign(1, c);
test_type v2(alloc_type(2));
v2.assign(1, c);
v2 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(2 == v2.get_allocator().get_personality());
v1.assign(1, c);
test_type v3(alloc_type(3));
v3.assign(100, c);
v3 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(3 == v3.get_allocator().get_personality());
v1.assign(100, c);
test_type v4(alloc_type(4));
v4.assign(1, c);
v4 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(4 == v4.get_allocator().get_personality());
v1.assign(100, c);
test_type v5(alloc_type(5));
v5.assign(100, c);
v5 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(5 == v5.get_allocator().get_personality());
}
void test02()
{
typedef propagating_allocator<C, true> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1(alloc_type(1));
v1.assign(1, c);
test_type v2(alloc_type(2));
v2.assign(1, c);
v2 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(1 == v2.get_allocator().get_personality());
v1.assign(1, c);
test_type v3(alloc_type(3));
v3.assign(100, c);
v3 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(1 == v3.get_allocator().get_personality());
v1.assign(100, c);
test_type v4(alloc_type(4));
v4.assign(1, c);
v4 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(1 == v4.get_allocator().get_personality());
v1.assign(100, c);
test_type v5(alloc_type(5));
v5.assign(100, c);
v5 = v1;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(1 == v5.get_allocator().get_personality());
}
void test03()
{
// PR libstdc++/79254
using throw_alloc = __gnu_cxx::throw_allocator_limit<C>;
typedef propagating_allocator<C, true, throw_alloc> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
alloc_type a1(1), a2(2);
throw_alloc::set_limit(2); // Throw on third allocation (during assignment).
const C* s1 = "a string that is longer than a small string";
const C* s2 = "another string that is longer than a small string";
test_type v1(s1, a1);
test_type v2(s2, a2);
bool caught = false;
try {
v1 = v2;
} catch (__gnu_cxx::forced_error&) {
caught = true;
}
VERIFY( caught );
VERIFY( v1 == s1 );
VERIFY( v1.get_allocator() == a1 );
throw_alloc::set_limit(1); // Allow one more allocation (and no more).
test_type v3(s1, a1);
// No allocation when allocators are equal and capacity is sufficient:
VERIFY( v1.capacity() >= v3.size() );
v1 = v3;
// No allocation when the contents fit in the small-string buffer:
v2 = "sso";
v1 = v2;
VERIFY( v1.get_allocator() == a2 );
}
void test04()
{
// LWG2579
typedef propagating_allocator<C, true> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1("tralalala",alloc_type(1));
test_type v2("content", alloc_type(2));
test_type v3("content2", alloc_type(3));
v1.assign(v2);
v3 = v2;
VERIFY(2 == v1.get_allocator().get_personality());
VERIFY(2 == v3.get_allocator().get_personality());
}
void test05()
{
// LWG2579
typedef propagating_allocator<C, false> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1("tralalala",alloc_type(1));
test_type v2("content", alloc_type(2));
test_type v3("content2", alloc_type(3));
v1.assign(v2);
v3 = v2;
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(3 == v3.get_allocator().get_personality());
}
int main()
{
test01();
test02();
test03();
test04();
test05();
return 0;
}
|
