| 1 | /* xmalloc.c -- safe versions of malloc and realloc.
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| 2 |
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| 3 | Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 2004 Free Software
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| 4 | Foundation, Inc.
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| 5 |
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| 6 | This program is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2, or (at your option)
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| 9 | any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program; if not, write to the Free Software
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| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 19 |
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| 20 | Written by Brian Fox (bfox@ai.mit.edu). */
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| 21 |
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| 22 | #if !defined (ALREADY_HAVE_XMALLOC)
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| 23 | #include "system.h"
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| 24 |
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| 25 | static void
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| 26 | memory_error_and_abort (const char *fname)
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| 27 | {
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| 28 | fprintf (stderr, "%s: Out of virtual memory!\n", fname);
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| 29 | abort ();
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| 30 | }
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| 31 |
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| 32 | /* Return a pointer to free()able block of memory large enough
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| 33 | to hold BYTES number of bytes. If the memory cannot be allocated,
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| 34 | print an error message and abort. */
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| 35 | void *
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| 36 | xmalloc (size_t bytes)
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| 37 | {
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| 38 | void *temp = malloc (bytes);
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| 39 |
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| 40 | if (!temp)
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| 41 | memory_error_and_abort ("xmalloc");
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| 42 | return (temp);
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| 43 | }
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| 44 |
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| 45 | void *
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| 46 | xrealloc (void *pointer, size_t bytes)
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| 47 | {
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| 48 | void *temp;
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| 49 |
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| 50 | if (!pointer)
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| 51 | temp = malloc (bytes);
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| 52 | else
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| 53 | temp = realloc (pointer, bytes);
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| 54 |
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| 55 | if (!temp)
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| 56 | memory_error_and_abort ("xrealloc");
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| 57 |
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| 58 | return (temp);
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| 59 | }
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| 60 |
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| 61 | #endif /* !ALREADY_HAVE_XMALLOC */
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