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a945c346 | 1 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
17abcc77 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 | ||
f1b06f57 | 18 | // { dg-do run { target c++20 } } |
17abcc77 JW |
19 | |
20 | // LWG 2499 | |
21 | // operator>>(basic_istream&, CharT*) makes it hard to avoid buffer overflows | |
22 | ||
23 | #include <sstream> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | template<typename T> | |
27 | void | |
28 | test(std::basic_istream<char, T>& in) | |
29 | { | |
30 | char pc[3]; | |
31 | in >> pc; | |
32 | VERIFY( in.good() ); | |
33 | VERIFY( pc[0] == 'a' && pc[1] == 'b' && pc[2] == '\0' ); | |
34 | ||
35 | signed char sc[4]; | |
36 | in >> sc; | |
37 | VERIFY( in.good() ); | |
38 | VERIFY( sc[0] == 'c' && sc[1] == 'd' && sc[2] == 'e' && sc[3] == '\0' ); | |
39 | ||
40 | unsigned char uc[4]; | |
41 | in >> uc; | |
42 | VERIFY( in.good() ); | |
43 | VERIFY( uc[0] == 'f' && uc[1] == 'g' && uc[2] == 'h' && uc[3] == '\0' ); | |
44 | ||
45 | pc[2] = '#'; | |
46 | in >> pc; | |
47 | VERIFY( in.good() ); | |
48 | VERIFY( pc[0] == 'i' && pc[1] == '\0' && pc[2] == '#' ); | |
49 | ||
50 | in >> pc; | |
51 | VERIFY( in.good() ); | |
52 | VERIFY( pc[0] == 'j' && pc[1] == 'k' && pc[2] == '\0' ); | |
53 | ||
54 | pc[2] = '#'; | |
55 | in >> pc; | |
56 | VERIFY( in.eof() ); | |
57 | VERIFY( pc[0] == 'l' && pc[1] == '\0' && pc[2] == '#' ); | |
58 | } | |
59 | ||
60 | void | |
61 | test01() | |
62 | { | |
63 | std::istringstream in("abcdefghi jk l"); | |
64 | test(in); | |
65 | } | |
66 | ||
67 | void | |
68 | test02() | |
69 | { | |
70 | struct CT : std::char_traits<char> { }; | |
71 | std::basic_istringstream<char, CT> in("abcdefghi jk l"); | |
72 | test(in); | |
73 | } | |
74 | ||
75 | int main() | |
76 | { | |
77 | test01(); | |
78 | test02(); | |
79 | } |