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a945c346 | 1 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
95cb0fc8 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. | |
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 | // 29.8.3.4 basic_istringstream member functions [istringstream.members] | |
19 | ||
f1b06f57 | 20 | // { dg-do run { target c++20 } } |
a04b73e1 | 21 | // { dg-require-effective-target cxx11_abi } |
95cb0fc8 JW |
22 | |
23 | #include <sstream> | |
24 | #include <testsuite_hooks.h> | |
25 | #include <testsuite_allocator.h> | |
26 | ||
27 | void test01() | |
28 | { | |
29 | const std::wstring s0 = L"this is not a short string"; | |
30 | std::wistringstream ss; | |
31 | ss.str(s0); | |
32 | VERIFY( ss.str() == s0 ); | |
33 | VERIFY( ss.str() == s0 ); | |
34 | ||
35 | using Alloc = __gnu_test::uneq_allocator<wchar_t>; | |
36 | const Alloc a1(1); | |
37 | std::basic_string<wchar_t, std::char_traits<wchar_t>, Alloc> s1 = ss.str(a1); | |
38 | VERIFY( s1.get_allocator() == a1 ); | |
39 | VERIFY( ss.str(a1).get_allocator() == a1 ); | |
40 | VERIFY( ss.str(a1) == s1 ); | |
41 | VERIFY( std::move(ss).str(a1) == s1 ); | |
42 | VERIFY( std::move(ss).str(a1) == s1 ); | |
43 | ||
44 | const Alloc a2(2); | |
45 | VERIFY( ss.str(a2).get_allocator() == a2 ); | |
46 | VERIFY( ss.str(a2) == s1 ); | |
47 | ||
48 | VERIFY( std::move(ss).str() == s0 ); | |
49 | VERIFY( std::move(ss).str().empty() ); | |
50 | VERIFY( ss.str().empty() ); | |
51 | VERIFY( ss.str(a1).empty() ); | |
52 | } | |
53 | ||
54 | void test02() | |
55 | { | |
56 | std::wistringstream ss(L"123"); | |
57 | std::wstring str = L"ABCDEF"; | |
58 | ss.str(str); | |
59 | VERIFY( ss.str() == str ); | |
60 | VERIFY( std::move(ss).str() == str ); | |
61 | VERIFY( std::move(ss).str().empty() ); | |
62 | } | |
63 | ||
64 | void test03() | |
65 | { | |
66 | std::wistringstream ss; | |
67 | using Alloc = __gnu_test::tracker_allocator<wchar_t>; | |
68 | using Str = std::basic_string<wchar_t, std::char_traits<wchar_t>, Alloc>; | |
69 | Str s1 = L"string that is not short, quite long even"; | |
70 | auto count1 = __gnu_test::tracker_allocator_counter::get_allocation_count(); | |
71 | ss.str(s1); | |
72 | auto count2 = __gnu_test::tracker_allocator_counter::get_allocation_count(); | |
73 | VERIFY( count1 == count2 ); | |
74 | VERIFY( ss.str() == s1.c_str() ); | |
75 | } | |
76 | ||
77 | void test04() | |
78 | { | |
79 | std::wistringstream ss; | |
80 | const std::wstring str = L"Another quite long string, not at all short"; | |
81 | std::wstring str2 = str; | |
82 | ss.str(std::move(str2)); | |
83 | VERIFY( str2.empty() ); | |
84 | VERIFY( ss.str() == str ); | |
85 | } | |
86 | ||
87 | int main() | |
88 | { | |
89 | test01(); | |
90 | test02(); | |
91 | test03(); | |
92 | test04(); | |
93 | } |