mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-25 04:39:00 +08:00
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* xmalloc.c -- safe versions of malloc and realloc */
|
|
|
|
/* This file is part of GNU Info, a program for reading online documentation
|
|
stored in Info format.
|
|
|
|
This file has appeared in prior works by the Free Software Foundation;
|
|
thus it carries copyright dates from 1988 through 1993.
|
|
|
|
Copyright (C) 1988, 1989, 1990, 1991, 1992, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
Written by Brian Fox (bfox@ai.mit.edu). */
|
|
|
|
#if !defined (ALREADY_HAVE_XMALLOC)
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
|
|
extern void *malloc (), *realloc ();
|
|
static void memory_error_and_abort ();
|
|
|
|
/* **************************************************************** */
|
|
/* */
|
|
/* Memory Allocation and Deallocation. */
|
|
/* */
|
|
/* **************************************************************** */
|
|
|
|
/* Return a pointer to free()able block of memory large enough
|
|
to hold BYTES number of bytes. If the memory cannot be allocated,
|
|
print an error message and abort. */
|
|
void *
|
|
xmalloc (bytes)
|
|
int bytes;
|
|
{
|
|
void *temp = malloc (bytes);
|
|
|
|
if (!temp)
|
|
memory_error_and_abort ("xmalloc");
|
|
return (temp);
|
|
}
|
|
|
|
void *
|
|
xrealloc (pointer, bytes)
|
|
void *pointer;
|
|
int bytes;
|
|
{
|
|
void *temp;
|
|
|
|
if (!pointer)
|
|
temp = malloc (bytes);
|
|
else
|
|
temp = realloc (pointer, bytes);
|
|
|
|
if (!temp)
|
|
memory_error_and_abort ("xrealloc");
|
|
|
|
return (temp);
|
|
}
|
|
|
|
static void
|
|
memory_error_and_abort (fname)
|
|
char *fname;
|
|
{
|
|
fprintf (stderr, "%s: Out of virtual memory!\n", fname);
|
|
abort ();
|
|
}
|
|
#endif /* !ALREADY_HAVE_XMALLOC */
|