1// 2004-01-25 jlquinn@gcc.gnu.org 2 3// Copyright (C) 2004-2015 Free Software Foundation, Inc. 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 8// Free Software Foundation; either version 3, or (at your option) 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 17// with this library; see the file COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 27.4.2.5 ios_base storage functions 21 22#include <cstdlib> 23#include <new> 24#include <iostream> 25#include <testsuite_hooks.h> 26 27int new_fails; 28 29void* operator new(std::size_t n) throw (std::bad_alloc) 30{ 31 if (new_fails) 32 throw std::bad_alloc(); 33 return malloc(n); 34} 35void* operator new[] (std::size_t n) throw (std::bad_alloc) 36{ return operator new(n); } 37 38void operator delete (void *p) throw() { free(p); } 39void operator delete[] (void *p) throw() { operator delete(p); } 40 41int main () 42{ 43 bool test __attribute__((unused)) = true; 44 const int i = std::ios::xalloc(); 45 VERIFY( i >= 0 ); 46 47 new_fails = 1; 48 49 // Successive accesses to failure storage clears to zero. 50 std::cout.iword(100) = 69; 51 VERIFY( std::cout.iword(100) == 0 ); 52 53 // Access to pword failure storage shouldn't clear iword pword storage. 54 long& lr = std::cout.iword(100); 55 lr = 69; 56 57 void* pv = std::cout.pword(100); 58 VERIFY( pv == 0 ); 59 VERIFY( lr == 69 ); 60 61 return 0; 62} 63 64