blob: 19d5165bf30613f001fca0009f98c45442bcb686 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// { dg-xfail-run-if "AIX operator new" { powerpc-ibm-aix* } }
// 2004-01-25 jlquinn@gcc.gnu.org
// Copyright (C) 2004-2021 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/>.
// 27.4.2.5 ios_base storage functions
#include <cstdlib>
#include <new>
#include <iostream>
#include <testsuite_hooks.h>
int new_fails;
void* operator new(std::size_t n, const std::nothrow_t&) throw()
{
if (new_fails)
return 0;
return malloc(n);
}
void* operator new[] (std::size_t n, const std::nothrow_t& ntt) throw()
{ return operator new(n, ntt); }
void operator delete (void *p) throw() { free(p); }
void operator delete[] (void *p) throw() { operator delete(p); }
int main ()
{
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;
}
|