diff options
Diffstat (limited to 'lib/xalloc.h')
-rw-r--r-- | lib/xalloc.h | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/lib/xalloc.h b/lib/xalloc.h deleted file mode 100644 index f80977e..0000000 --- a/lib/xalloc.h +++ /dev/null | |||
@@ -1,79 +0,0 @@ | |||
1 | /* xalloc.h -- malloc with out-of-memory checking | ||
2 | |||
3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | ||
4 | 1999, 2000, 2003, 2004 Free Software Foundation, Inc. | ||
5 | |||
6 | This program is free software; you can redistribute it and/or modify | ||
7 | it under the terms of the GNU General Public License as published by | ||
8 | the Free Software Foundation; either version 2, or (at your option) | ||
9 | any later version. | ||
10 | |||
11 | This program 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 | ||
17 | along with this program; if not, write to the Free Software Foundation, | ||
18 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | ||
19 | |||
20 | #ifndef XALLOC_H_ | ||
21 | # define XALLOC_H_ | ||
22 | |||
23 | # include <stddef.h> | ||
24 | |||
25 | |||
26 | # ifdef __cplusplus | ||
27 | extern "C" { | ||
28 | # endif | ||
29 | |||
30 | |||
31 | # ifndef __attribute__ | ||
32 | # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ | ||
33 | # define __attribute__(x) | ||
34 | # endif | ||
35 | # endif | ||
36 | |||
37 | # ifndef ATTRIBUTE_NORETURN | ||
38 | # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) | ||
39 | # endif | ||
40 | |||
41 | /* This function is always triggered when memory is exhausted. | ||
42 | It must be defined by the application, either explicitly | ||
43 | or by using gnulib's xalloc-die module. This is the | ||
44 | function to call when one wants the program to die because of a | ||
45 | memory allocation failure. */ | ||
46 | extern void xalloc_die (void) ATTRIBUTE_NORETURN; | ||
47 | |||
48 | void *xmalloc (size_t s); | ||
49 | void *xnmalloc (size_t n, size_t s); | ||
50 | void *xzalloc (size_t s); | ||
51 | void *xcalloc (size_t n, size_t s); | ||
52 | void *xrealloc (void *p, size_t s); | ||
53 | void *xnrealloc (void *p, size_t n, size_t s); | ||
54 | void *x2realloc (void *p, size_t *pn); | ||
55 | void *x2nrealloc (void *p, size_t *pn, size_t s); | ||
56 | void *xmemdup (void const *p, size_t s); | ||
57 | char *xstrdup (char const *str); | ||
58 | |||
59 | /* Return 1 if an array of N objects, each of size S, cannot exist due | ||
60 | to size arithmetic overflow. S must be positive and N must be | ||
61 | nonnegative. This is a macro, not an inline function, so that it | ||
62 | works correctly even when SIZE_MAX < N. | ||
63 | |||
64 | By gnulib convention, SIZE_MAX represents overflow in size | ||
65 | calculations, so the conservative dividend to use here is | ||
66 | SIZE_MAX - 1, since SIZE_MAX might represent an overflowed value. | ||
67 | However, malloc (SIZE_MAX) fails on all known hosts where | ||
68 | sizeof (ptrdiff_t) <= sizeof (size_t), so do not bother to test for | ||
69 | exactly-SIZE_MAX allocations on such hosts; this avoids a test and | ||
70 | branch when S is known to be 1. */ | ||
71 | # define xalloc_oversized(n, s) \ | ||
72 | ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n)) | ||
73 | |||
74 | # ifdef __cplusplus | ||
75 | } | ||
76 | # endif | ||
77 | |||
78 | |||
79 | #endif /* !XALLOC_H_ */ | ||