1 /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
2 Written by James Clark (jjc@jclark.com)
3
4 This file is part of groff.
5
6 groff is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
9 version.
10
11 groff is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License along
17 with groff; see the file COPYING. If not, write to the Free Software
18 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20 #include <stddef.h>
21 #include <stdlib.h>
22 #include <string.h>
23
24 #include "posix.h"
25
26 extern const char *program_name;
27
ewrite(const char * s)28 static void ewrite(const char *s)
29 {
30 write(2, s, strlen(s));
31 }
32
operator new(size_t size)33 void *operator new(size_t size)
34 {
35 // Avoid relying on the behaviour of malloc(0).
36 if (size == 0)
37 size++;
38 #ifdef COOKIE_BUG
39 char *p = (char *)malloc(unsigned(size + 8));
40 if (p != 0) {
41 ((unsigned *)p)[1] = 0;
42 return p + 8;
43 }
44 #else /* not COOKIE_BUG */
45 char *p = (char *)malloc(unsigned(size));
46 if (p != 0)
47 return p;
48 #endif /* not COOKIE_BUG */
49 if (program_name) {
50 ewrite(program_name);
51 ewrite(": ");
52 }
53 ewrite("out of memory\n");
54 _exit(-1);
55 }
56
57 #ifdef COOKIE_BUG
58
operator delete(void * p)59 void operator delete(void *p)
60 {
61 if (p)
62 free((void *)((char *)p - 8));
63 }
64
65 #endif /* COOKIE_BUG */
66