freebsd-dev/contrib/bison/allocate.c
1999-08-14 21:39:07 +00:00

81 lines
2.0 KiB
C

/* Allocate and clear storage for bison,
Copyright (C) 1984, 1989 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Bison 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.
Bison 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 Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include "system.h"
#ifdef NEED_DECLARATION_CALLOC
#if defined (__STDC__) || defined (_MSC_VER)
extern void *calloc ();
#else
extern char *calloc ();
#endif
#endif /* NEED_DECLARATION_CALLOC */
#ifdef NEED_DECLARATION_REALLOC
#if defined (__STDC__) || defined (_MSC_VER)
extern void *realloc ();
#else
extern char *realloc ();
#endif
#endif /* NEED_DECLARATION_REALLOC */
char *xmalloc PARAMS((register unsigned));
char *xrealloc PARAMS((register char *, register unsigned));
extern void done PARAMS((int));
extern char *program_name;
char *
xmalloc (register unsigned n)
{
register char *block;
/* Avoid uncertainty about what an arg of 0 will do. */
if (n == 0)
n = 1;
block = calloc (n, 1);
if (block == NULL)
{
fprintf (stderr, _("%s: memory exhausted\n"), program_name);
done (1);
}
return (block);
}
char *
xrealloc (register char *block, register unsigned n)
{
/* Avoid uncertainty about what an arg of 0 will do. */
if (n == 0)
n = 1;
block = realloc (block, n);
if (block == NULL)
{
fprintf (stderr, _("%s: memory exhausted\n"), program_name);
done (1);
}
return (block);
}