| // 2004-01-25 jlquinn@gcc.gnu.org |
| |
| // Copyright (C) 2004, 2005 Free Software Foundation |
| // |
| // 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 2, 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 COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.4.2.5 ios_base storage functions |
| |
| #include <cstdlib> |
| #include <new> |
| #include <iostream> |
| #include <testsuite_hooks.h> |
| |
| int new_fails; |
| |
| void* operator new(std::size_t n) throw (std::bad_alloc) |
| { |
| if (new_fails) |
| throw std::bad_alloc(); |
| return malloc(n); |
| } |
| void* operator new[] (std::size_t n) throw (std::bad_alloc) |
| { return operator new(n); } |
| |
| void operator delete (void *p) throw() { free(p); } |
| void operator delete[] (void *p) throw() { operator delete(p); } |
| |
| int main () |
| { |
| bool test __attribute__((unused)) = true; |
| const int i = std::ios::xalloc(); |
| VERIFY( i >= 0 ); |
| |
| new_fails = 1; |
| |
| // Successive accesses to failure storage clears to zero. |
| std::cout.iword(100) = 69; |
| VERIFY( std::cout.iword(100) == 0 ); |
| |
| // Access to pword failure storage shouldn't clear iword pword storage. |
| long& lr = std::cout.iword(100); |
| lr = 69; |
| |
| void* pv = std::cout.pword(100); |
| VERIFY( pv == 0 ); |
| VERIFY( lr == 69 ); |
| |
| return 0; |
| } |
| |