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authorpeter <peter@FreeBSD.org>1995-10-28 18:51:33 +0000
committerpeter <peter@FreeBSD.org>1995-10-28 18:51:33 +0000
commit72fa7ec057bc2d7930e60d59f3936afe1de4bc11 (patch)
treef917c4d092ab7f07578aa4ed130670f8318a80e7 /gnu/usr.bin/diff/xmalloc.c
parent563e4a17a436fd50aa0bba32d08c6aca09b6673b (diff)
parent27378b5694b4941bb63a62097f7ee523da0a35bb (diff)
downloadFreeBSD-src-72fa7ec057bc2d7930e60d59f3936afe1de4bc11.zip
FreeBSD-src-72fa7ec057bc2d7930e60d59f3936afe1de4bc11.tar.gz
This commit was generated by cvs2svn to compensate for changes in r11884,
which included commits to RCS files with non-trunk default branches.
Diffstat (limited to 'gnu/usr.bin/diff/xmalloc.c')
-rw-r--r--gnu/usr.bin/diff/xmalloc.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/gnu/usr.bin/diff/xmalloc.c b/gnu/usr.bin/diff/xmalloc.c
new file mode 100644
index 0000000..dc44ba4
--- /dev/null
+++ b/gnu/usr.bin/diff/xmalloc.c
@@ -0,0 +1,81 @@
+/* xmalloc.c -- malloc with out of memory checking
+ Copyright (C) 1990, 1991, 1993 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
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#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
+VOID *malloc ();
+VOID *realloc ();
+void free ();
+#endif
+
+#if __STDC__ && defined (HAVE_VPRINTF)
+void error (int, int, char const *, ...);
+#else
+void error ();
+#endif
+
+/* Allocate N bytes of memory dynamically, with error checking. */
+
+VOID *
+xmalloc (n)
+ size_t n;
+{
+ VOID *p;
+
+ p = malloc (n);
+ if (p == 0)
+ /* Must exit with 2 for `cmp'. */
+ error (2, 0, "memory exhausted");
+ 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. */
+
+VOID *
+xrealloc (p, 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, "memory exhausted");
+ return p;
+}
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