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52066eae | 1 | // { dg-do run { target c++11 } } |
9b817548 | 2 | |
99dee823 | 3 | // Copyright (C) 2014-2021 Free Software Foundation, Inc. |
9b817548 JW |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // 27.8.3.2 Assign and swap [istringstream.assign] | |
21 | ||
22 | #include <sstream> | |
23 | #include <string> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | void | |
27 | test01() | |
28 | { | |
29 | std::istringstream s1("absence of a signal"); | |
30 | std::string s; | |
31 | s1 >> s; | |
32 | ||
33 | std::istringstream s2; | |
34 | s2 = std::move(s1); | |
35 | s2 >> s; | |
36 | VERIFY(s == "of"); | |
37 | ||
38 | std::istringstream s3; | |
39 | s3.swap(s2); | |
40 | s3 >> s; | |
41 | VERIFY(s == "a"); | |
42 | ||
43 | swap(s1, s3); | |
44 | s1 >> s; | |
45 | VERIFY(s == "signal"); | |
46 | ||
47 | s2.str("should never be used as a signal"); | |
48 | s1 = std::move(s2); | |
49 | getline(s1, s); | |
50 | VERIFY(s == "should never be used as a signal"); | |
51 | s3 = std::move(s1); | |
52 | VERIFY(s3.eof()); | |
53 | } | |
54 | ||
55 | void test02() | |
56 | { | |
57 | std::istringstream s0{ " 1234.5 " }; | |
58 | std::istringstream s; | |
59 | s = std::move(s0); | |
60 | char c{}; | |
61 | s >> c; | |
62 | VERIFY( c == '1' ); | |
63 | int i{}; | |
64 | s >> i; | |
65 | VERIFY( i == 234 ); | |
66 | double d{}; | |
67 | s >> d; | |
68 | VERIFY( d == .5 ); | |
69 | } | |
70 | ||
71 | void test03() | |
72 | { | |
73 | #ifdef _GLIBCXX_USE_WCHAR_T | |
74 | std::wistringstream s0{ L" 1234.5 " }; | |
75 | std::wistringstream s; | |
76 | s = std::move(s0); | |
77 | s.swap(s0); | |
78 | swap(s, s0); | |
79 | wchar_t c{}; | |
80 | s >> c; | |
81 | VERIFY( c == L'1' ); | |
82 | int i{}; | |
83 | s >> i; | |
84 | VERIFY( i == 234 ); | |
85 | double d{}; | |
86 | s >> d; | |
87 | VERIFY( d == .5 ); | |
88 | #endif | |
89 | } | |
90 | ||
91 | int | |
92 | main() | |
93 | { | |
94 | test01(); | |
95 | test02(); | |
96 | test03(); | |
97 | } |