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