diff options
Diffstat (limited to 'lib/xalloc.h')
-rw-r--r-- | lib/xalloc.h | 42 |
1 files changed, 17 insertions, 25 deletions
diff --git a/lib/xalloc.h b/lib/xalloc.h index 4b658581..f80977e3 100644 --- a/lib/xalloc.h +++ b/lib/xalloc.h | |||
@@ -1,7 +1,7 @@ | |||
1 | /* xalloc.h -- malloc with out-of-memory checking | 1 | /* xalloc.h -- malloc with out-of-memory checking |
2 | 2 | ||
3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
4 | 1999, 2000, 2003 Free Software Foundation, Inc. | 4 | 1999, 2000, 2003, 2004 Free Software Foundation, Inc. |
5 | 5 | ||
6 | This program is free software; you can redistribute it and/or modify | 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 | 7 | it under the terms of the GNU General Public License as published by |
@@ -15,13 +15,19 @@ | |||
15 | 15 | ||
16 | You should have received a copy of the GNU General Public License | 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, | 17 | along with this program; if not, write to the Free Software Foundation, |
18 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | 18 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
19 | 19 | ||
20 | #ifndef XALLOC_H_ | 20 | #ifndef XALLOC_H_ |
21 | # define XALLOC_H_ | 21 | # define XALLOC_H_ |
22 | 22 | ||
23 | # include <stddef.h> | 23 | # include <stddef.h> |
24 | 24 | ||
25 | |||
26 | # ifdef __cplusplus | ||
27 | extern "C" { | ||
28 | # endif | ||
29 | |||
30 | |||
25 | # ifndef __attribute__ | 31 | # ifndef __attribute__ |
26 | # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ | 32 | # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ |
27 | # define __attribute__(x) | 33 | # define __attribute__(x) |
@@ -32,18 +38,9 @@ | |||
32 | # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) | 38 | # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) |
33 | # endif | 39 | # endif |
34 | 40 | ||
35 | /* If this pointer is non-zero, run the specified function upon each | 41 | /* This function is always triggered when memory is exhausted. |
36 | allocation failure. It is initialized to zero. */ | 42 | It must be defined by the application, either explicitly |
37 | extern void (*xalloc_fail_func) (void); | 43 | or by using gnulib's xalloc-die module. This is the |
38 | |||
39 | /* If XALLOC_FAIL_FUNC is undefined or a function that returns, this | ||
40 | message is output. It is translated via gettext. | ||
41 | Its value is "memory exhausted". */ | ||
42 | extern char const xalloc_msg_memory_exhausted[]; | ||
43 | |||
44 | /* This function is always triggered when memory is exhausted. It is | ||
45 | in charge of honoring the two previous items. It exits with status | ||
46 | exit_failure (defined in exitfail.h). This is the | ||
47 | function to call when one wants the program to die because of a | 44 | function to call when one wants the program to die because of a |
48 | memory allocation failure. */ | 45 | memory allocation failure. */ |
49 | extern void xalloc_die (void) ATTRIBUTE_NORETURN; | 46 | extern void xalloc_die (void) ATTRIBUTE_NORETURN; |
@@ -56,8 +53,8 @@ void *xrealloc (void *p, size_t s); | |||
56 | void *xnrealloc (void *p, size_t n, size_t s); | 53 | void *xnrealloc (void *p, size_t n, size_t s); |
57 | void *x2realloc (void *p, size_t *pn); | 54 | void *x2realloc (void *p, size_t *pn); |
58 | void *x2nrealloc (void *p, size_t *pn, size_t s); | 55 | void *x2nrealloc (void *p, size_t *pn, size_t s); |
59 | void *xclone (void const *p, size_t s); | 56 | void *xmemdup (void const *p, size_t s); |
60 | char *xstrdup (const char *str); | 57 | char *xstrdup (char const *str); |
61 | 58 | ||
62 | /* Return 1 if an array of N objects, each of size S, cannot exist due | 59 | /* Return 1 if an array of N objects, each of size S, cannot exist due |
63 | to size arithmetic overflow. S must be positive and N must be | 60 | to size arithmetic overflow. S must be positive and N must be |
@@ -74,14 +71,9 @@ char *xstrdup (const char *str); | |||
74 | # define xalloc_oversized(n, s) \ | 71 | # define xalloc_oversized(n, s) \ |
75 | ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n)) | 72 | ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n)) |
76 | 73 | ||
77 | /* These macros are deprecated; they will go away soon, and are retained | 74 | # ifdef __cplusplus |
78 | temporarily only to ease conversion to the functions described above. */ | 75 | } |
79 | # define CCLONE(p, n) xclone (p, (n) * sizeof *(p)) | 76 | # endif |
80 | # define CLONE(p) xclone (p, sizeof *(p)) | 77 | |
81 | # define NEW(type, var) type *var = xmalloc (sizeof (type)) | ||
82 | # define XCALLOC(type, n) xcalloc (n, sizeof (type)) | ||
83 | # define XMALLOC(type, n) xnmalloc (n, sizeof (type)) | ||
84 | # define XREALLOC(p, type, n) xnrealloc (p, n, sizeof (type)) | ||
85 | # define XFREE(p) free (p) | ||
86 | 78 | ||
87 | #endif /* !XALLOC_H_ */ | 79 | #endif /* !XALLOC_H_ */ |