81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* xmalloc.c -- safe versions of malloc and realloc */
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/* This file is part of GNU Info, a program for reading online documentation
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stored in Info format.
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This file has appeared in prior works by the Free Software Foundation;
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thus it carries copyright dates from 1988 through 1993.
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993 Free Software
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Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Written by Brian Fox (bfox@ai.mit.edu). */
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#if !defined (ALREADY_HAVE_XMALLOC)
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#include <stdio.h>
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#include <sys/types.h>
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extern void *malloc (), *realloc ();
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static void abort(), memory_error_and_abort ();
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/* **************************************************************** */
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/* */
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/* Memory Allocation and Deallocation. */
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/* */
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/* **************************************************************** */
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/* Return a pointer to free()able block of memory large enough
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to hold BYTES number of bytes. If the memory cannot be allocated,
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print an error message and abort. */
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void *
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xmalloc (bytes)
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int bytes;
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{
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void *temp = malloc (bytes);
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if (!temp)
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memory_error_and_abort ("xmalloc");
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return (temp);
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}
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void *
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xrealloc (pointer, bytes)
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void *pointer;
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int bytes;
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{
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void *temp;
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if (!pointer)
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temp = malloc (bytes);
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else
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temp = realloc (pointer, bytes);
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if (!temp)
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memory_error_and_abort ("xrealloc");
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return (temp);
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}
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static void
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memory_error_and_abort (fname)
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char *fname;
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{
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fprintf (stderr, "%s: Out of virtual memory!\n", fname);
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abort ();
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}
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#endif /* !ALREADY_HAVE_XMALLOC */
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