| // Copyright (C) 2004-2013 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // 27.6.1.2.2 arithmetic extractors |
| |
| // XXX This test fails on Solaris 9 because of a bug in libc |
| // XXX sscanf for very long input. See: |
| // XXX http://gcc.gnu.org/ml/gcc/2002-12/msg01422.html |
| // { dg-do run { xfail { { *-*-solaris2.9 } || lax_strtofp } } } |
| |
| #include <istream> |
| #include <sstream> |
| #include <limits> |
| #include <testsuite_hooks.h> |
| |
| // libstdc++/3720 |
| // excess input should not cause a core dump |
| template<typename T> |
| bool test12_aux(bool integer_type) |
| { |
| bool test __attribute__((unused)) = true; |
| |
| int digits_overflow; |
| if (integer_type) |
| // This many digits will overflow integer types in base 10. |
| digits_overflow = std::numeric_limits<T>::digits10 + 2; |
| else |
| // This might do it, unsure. |
| digits_overflow = std::numeric_limits<T>::max_exponent10 + 1; |
| |
| std::wstring st; |
| std::wstring part = L"1234567890123456789012345678901234567890"; |
| for (std::size_t i = 0; i < digits_overflow / part.size() + 1; ++i) |
| st += part; |
| std::wstringbuf sb(st); |
| std::wistream is(&sb); |
| T t; |
| is >> t; |
| VERIFY( is.fail() ); |
| return test; |
| } |
| |
| bool test12() |
| { |
| bool test __attribute__((unused)) = true; |
| VERIFY( test12_aux<short>(true) ); |
| VERIFY( test12_aux<int>(true) ); |
| VERIFY( test12_aux<long>(true) ); |
| VERIFY( test12_aux<float>(false) ); |
| VERIFY( test12_aux<double>(false) ); |
| VERIFY( test12_aux<long double>(false) ); |
| return test; |
| } |
| |
| int main() |
| { |
| test12(); |
| return 0; |
| } |