[deliverable/binutils-gdb.git] / gas / xrealloc.c

/* 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 ()
  */

#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 */
Commit	Line	Data
01170860 RP	1	/* xrealloc.c - new memory or bust
	2
	3	Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
a39116f1 RP	4
	5	This file is part of GAS, the GNU Assembler.
	6
	7	GAS is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2, or (at your option)
	10	any later version.
	11
	12	GAS is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GAS; see the file COPYING. If not, write to
	19	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
fecd2382 RP	20
fecd2382 RP	21
fecd2382	22	/*
a39116f1 RP	23
	24	NAME
	25	xrealloc () - get more memory or bust
	26	INDEX
	27	xrealloc () uses realloc ()
	28	SYNOPSIS
	29	char *my_memory;
	30
	31	my_memory = xrealloc (my_memory, 42);
	32	/ * my_memory gets (perhaps new) address of 42 chars * /
	33
	34	DESCRIPTION
	35
	36	Use xrealloc () as an "error-free" realloc ().It does almost the same
	37	job. When it cannot honour your request for memory it BOMBS your
	38	program with a "virtual memory exceeded" message. Realloc() returns
	39	NULL and does not bomb your program.
	40
	41	SEE ALSO
	42	realloc ()
	43	*/
fecd2382	44
3340f7e5	45	#if __STDC__ == 1
fecd2382 RP	46	#include <stdlib.h>
	47	#else
	48	#ifdef USG
	49	#include <malloc.h>
	50	#else
a39116f1	51	char *realloc ();
fecd2382	52	#endif /* USG */
3340f7e5	53	#endif /* not __STDC__ */
fecd2382 RP	54
	55	#define error as_fatal
	56
	57	char *
a39116f1	58	xrealloc (ptr, n)
fecd2382 RP	59	register char *ptr;
	60	long n;
	61	{
a39116f1 RP	62	void error();
	63
	64	if ((ptr = realloc (ptr, (unsigned)n)) == 0)
	65	error ("virtual memory exceeded");
	66	return (ptr);
fecd2382 RP	67	}
fecd2382 RP	68
8b228fe9	69	/* end of xrealloc.c */