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authorTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
commitd6583bb2a13f329cf0332ef2570eb8bb8fc0e39c (patch)
treeece253b876159b39c620e62b6c9b1174642e070e /gnu/usr.bin/gas/xrealloc.c
initial import of NetBSD tree
Diffstat (limited to 'gnu/usr.bin/gas/xrealloc.c')
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1 files changed, 74 insertions, 0 deletions
diff --git a/gnu/usr.bin/gas/xrealloc.c b/gnu/usr.bin/gas/xrealloc.c
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+/* xrealloc.c - new memory or bust
+
+ Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS 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.
+
+ GAS 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 GAS; see the file COPYING. If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+
+/*
+
+ NAME
+ xrealloc () - get more memory or bust
+ INDEX
+ xrealloc () uses realloc ()
+ SYNOPSIS
+ char *my_memory;
+
+ my_memory = xrealloc (my_memory, 42);
+ / * my_memory gets (perhaps new) address of 42 chars * /
+
+ DESCRIPTION
+
+ Use xrealloc () as an "error-free" realloc ().It does almost the same
+ job. When it cannot honour your request for memory it BOMBS your
+ program with a "virtual memory exceeded" message. Realloc() returns
+ NULL and does not bomb your program.
+
+ SEE ALSO
+ realloc ()
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id: xrealloc.c,v 1.1 1995/10/18 08:39:00 deraadt Exp $";
+#endif
+
+
+#if __STDC__ == 1
+#include <stdlib.h>
+#else
+#ifdef USG
+#include <malloc.h>
+#else
+char *realloc ();
+#endif /* USG */
+#endif /* not __STDC__ */
+
+#define error as_fatal
+
+char *
+ xrealloc (ptr, n)
+register char *ptr;
+long n;
+{
+ void error();
+
+ if ((ptr = realloc (ptr, (unsigned)n)) == 0)
+ error ("virtual memory exceeded");
+ return (ptr);
+}
+
+/* end of xrealloc.c */