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1 | // 1999-04-12 bkoz |
2 | ||
83ffe9cd | 3 | // Copyright (C) 1999-2023 Free Software Foundation, Inc. |
8de6a6df KG |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
8de6a6df KG |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
8de6a6df KG |
19 | |
20 | // 27.6.1.2.2 arithmetic extractors | |
21 | ||
d9f069ab | 22 | // { dg-do run { xfail { lax_strtofp } } } |
8de6a6df | 23 | |
8de6a6df | 24 | #include <istream> |
8de6a6df | 25 | #include <sstream> |
6725add5 | 26 | #include <limits> |
8de6a6df KG |
27 | #include <testsuite_hooks.h> |
28 | ||
8de6a6df KG |
29 | // libstdc++/3720 |
30 | // excess input should not cause a core dump | |
31 | template<typename T> | |
fd0bf20c | 32 | void test12_aux(bool integer_type) |
8de6a6df | 33 | { |
8de6a6df KG |
34 | int digits_overflow; |
35 | if (integer_type) | |
36 | // This many digits will overflow integer types in base 10. | |
37 | digits_overflow = std::numeric_limits<T>::digits10 + 2; | |
38 | else | |
39 | // This might do it, unsure. | |
40 | digits_overflow = std::numeric_limits<T>::max_exponent10 + 1; | |
41 | ||
42 | std::string st; | |
43 | std::string part = "1234567890123456789012345678901234567890"; | |
11f10e6b | 44 | for (std::size_t i = 0; i < digits_overflow / part.size() + 1; ++i) |
8de6a6df KG |
45 | st += part; |
46 | std::stringbuf sb(st); | |
47 | std::istream is(&sb); | |
48 | T t; | |
49 | is >> t; | |
50 | VERIFY(is.fail()); | |
8de6a6df KG |
51 | } |
52 | ||
6ec3c9c8 | 53 | void test12() |
8de6a6df | 54 | { |
fd0bf20c PC |
55 | test12_aux<short>(true); |
56 | test12_aux<int>(true); | |
57 | test12_aux<long>(true); | |
58 | test12_aux<float>(false); | |
59 | test12_aux<double>(false); | |
60 | test12_aux<long double>(false); | |
8de6a6df KG |
61 | } |
62 | ||
63 | int main() | |
64 | { | |
65 | test12(); | |
66 | return 0; | |
67 | } |