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7adcbafe | 1 | // Copyright (C) 2015-2022 Free Software Foundation, Inc. |
5caff414 JW |
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. | |
5e961dba | 8 | |
5caff414 JW |
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. | |
5e961dba | 13 | |
5caff414 JW |
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 | ||
52066eae | 18 | // { dg-do compile { target c++11 } } |
5e961dba | 19 | // COW strings don't support C++11 allocator propagation: |
a04b73e1 | 20 | // { dg-require-effective-target cxx11_abi } |
5caff414 JW |
21 | |
22 | #include <string> | |
23 | #include <testsuite_allocator.h> | |
5e961dba | 24 | |
5caff414 JW |
25 | using C = char; |
26 | const C c = 'a'; | |
27 | using traits = std::char_traits<C>; | |
28 | ||
29 | using __gnu_test::propagating_allocator; | |
30 | ||
31 | void test01() | |
32 | { | |
33 | typedef std::allocator<C> alloc_type; | |
34 | typedef std::basic_string<C, traits, alloc_type> test_type; | |
35 | test_type v1; | |
36 | test_type v2; | |
37 | // this is a GNU extension for std::allocator | |
38 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
39 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
40 | } | |
41 | ||
42 | void test02() | |
43 | { | |
44 | typedef propagating_allocator<C, false> alloc_type; | |
45 | typedef std::basic_string<C, traits, alloc_type> test_type; | |
46 | test_type v1(alloc_type(1)); | |
47 | test_type v2(alloc_type(2)); | |
48 | static_assert( !noexcept( v1 = std::move(v2) ), "Move assign can throw" ); | |
49 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
50 | } | |
51 | ||
52 | void test03() | |
53 | { | |
54 | typedef propagating_allocator<C, true> alloc_type; | |
55 | typedef std::basic_string<C, traits, alloc_type> test_type; | |
56 | test_type v1(alloc_type(1)); | |
57 | test_type v2(alloc_type(2)); | |
58 | static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" ); | |
59 | static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" ); | |
60 | } |