diff options
author | Jim Meyering <jim@meyering.net> | 1995-03-20 15:09:56 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 1995-03-20 15:09:56 +0000 |
commit | f371bb0b805e873638bedee5c38f24aab1f13353 (patch) | |
tree | 4a6d068ccd2e145fb332741cb66558a103190aff /lib/xmalloc.c | |
parent | 4b72e436e67ea4f769600ecc48f793493907e20a (diff) | |
download | coreutils-f371bb0b805e873638bedee5c38f24aab1f13353.tar.xz |
sync from FSF
Diffstat (limited to 'lib/xmalloc.c')
-rw-r--r-- | lib/xmalloc.c | 80 |
1 files changed, 59 insertions, 21 deletions
diff --git a/lib/xmalloc.c b/lib/xmalloc.c index f989004be..bad831f5d 100644 --- a/lib/xmalloc.c +++ b/lib/xmalloc.c @@ -1,5 +1,5 @@ /* xmalloc.c -- malloc with out of memory checking - Copyright (C) 1990, 1991 Free Software Foundation, Inc. + Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -15,51 +15,89 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#ifdef STDC_HEADERS +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#if __STDC__ +#define VOID void +#else +#define VOID char +#endif + +#include <sys/types.h> + +#if STDC_HEADERS #include <stdlib.h> #else -char *malloc (); -char *realloc (); +VOID *malloc (); +VOID *realloc (); void free (); #endif +/* This is for other GNU distributions with internationalized messages. + The GNU C Library itself does not yet support such messages. */ +#if HAVE_LIBINTL_H +# include <libintl.h> +#else +# define gettext(msgid) (msgid) +#endif + +#ifndef EXIT_FAILURE +#define EXIT_FAILURE 1 +#endif + +/* Exit value when the requested amount of memory is not available. + The caller may set it to some other value. */ +int xmalloc_exit_failure = EXIT_FAILURE; + +#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT) +void error (int, int, const char *, ...); +#else void error (); +#endif + +static VOID * +fixup_null_alloc (n) + size_t n; +{ + VOID *p; + + p = 0; + if (n == 0) + p = malloc ((size_t) 1); + if (p == 0) + error (xmalloc_exit_failure, 0, gettext ("Memory exhausted")); + return p; +} /* Allocate N bytes of memory dynamically, with error checking. */ -char * +VOID * xmalloc (n) - unsigned n; + size_t n; { - char *p; + VOID *p; p = malloc (n); if (p == 0) - /* Must exit with 2 for `cmp'. */ - error (2, 0, "virtual memory exhausted"); + p = fixup_null_alloc (n); return p; } /* Change the size of an allocated block of memory P to N bytes, with error checking. - If P is NULL, run xmalloc. - If N is 0, run free and return NULL. */ + If P is NULL, run xmalloc. */ -char * +VOID * xrealloc (p, n) - char *p; - unsigned n; + VOID *p; + size_t n; { if (p == 0) return xmalloc (n); - if (n == 0) - { - free (p); - return 0; - } p = realloc (p, n); if (p == 0) - /* Must exit with 2 for `cmp'. */ - error (2, 0, "virtual memory exhausted"); + p = fixup_null_alloc (n); return p; } |