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1 | // 1999-04-12 bkoz |
2 | ||
748086b7 | 3 | // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 |
6725add5 | 4 | // Free Software Foundation, Inc. |
8de6a6df KG |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
748086b7 | 9 | // Free Software Foundation; either version 3, or (at your option) |
8de6a6df KG |
10 | // any later version. |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
18 | // with this library; see the file COPYING3. If not see |
19 | // <http://www.gnu.org/licenses/>. | |
8de6a6df KG |
20 | |
21 | // 27.6.1.2.2 arithmetic extractors | |
22 | ||
23 | // XXX This test fails on sparc-solaris2 because of a bug in libc | |
24 | // XXX sscanf for very long input. See: | |
25 | // XXX http://gcc.gnu.org/ml/gcc/2002-12/msg01422.html | |
a5ea7a0b | 26 | // { dg-do run { xfail { { sparc*-*-solaris2* } || lax_strtofp } } } |
8de6a6df | 27 | |
8de6a6df | 28 | #include <istream> |
8de6a6df | 29 | #include <sstream> |
6725add5 | 30 | #include <limits> |
8de6a6df KG |
31 | #include <testsuite_hooks.h> |
32 | ||
8de6a6df KG |
33 | // libstdc++/3720 |
34 | // excess input should not cause a core dump | |
35 | template<typename T> | |
36 | bool test12_aux(bool integer_type) | |
37 | { | |
11f10e6b | 38 | bool test __attribute__((unused)) = true; |
8de6a6df KG |
39 | |
40 | int digits_overflow; | |
41 | if (integer_type) | |
42 | // This many digits will overflow integer types in base 10. | |
43 | digits_overflow = std::numeric_limits<T>::digits10 + 2; | |
44 | else | |
45 | // This might do it, unsure. | |
46 | digits_overflow = std::numeric_limits<T>::max_exponent10 + 1; | |
47 | ||
48 | std::string st; | |
49 | std::string part = "1234567890123456789012345678901234567890"; | |
11f10e6b | 50 | for (std::size_t i = 0; i < digits_overflow / part.size() + 1; ++i) |
8de6a6df KG |
51 | st += part; |
52 | std::stringbuf sb(st); | |
53 | std::istream is(&sb); | |
54 | T t; | |
55 | is >> t; | |
56 | VERIFY(is.fail()); | |
57 | return test; | |
58 | } | |
59 | ||
60 | bool test12() | |
61 | { | |
11f10e6b | 62 | bool test __attribute__((unused)) = true; |
8de6a6df KG |
63 | VERIFY(test12_aux<short>(true)); |
64 | VERIFY(test12_aux<int>(true)); | |
65 | VERIFY(test12_aux<long>(true)); | |
66 | VERIFY(test12_aux<float>(false)); | |
67 | VERIFY(test12_aux<double>(false)); | |
68 | VERIFY(test12_aux<long double>(false)); | |
69 | return test; | |
70 | } | |
71 | ||
72 | int main() | |
73 | { | |
74 | test12(); | |
75 | return 0; | |
76 | } |