| /* 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 */ |