1 /* xmalloc.c -- safe versions of malloc and realloc. 2 3 Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 2004 Free Software 4 Foundation, Inc. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 20 Written by Brian Fox (bfox@ai.mit.edu). */ 21 22 #if !defined (ALREADY_HAVE_XMALLOC) 23 #include "system.h" 24 25 static void 26 memory_error_and_abort (const char *fname) 27 { 28 fprintf (stderr, "%s: Out of virtual memory!\n", fname); 29 abort (); 30 } 31 32 /* Return a pointer to free()able block of memory large enough 33 to hold BYTES number of bytes. If the memory cannot be allocated, 34 print an error message and abort. */ 35 void * 36 xmalloc (size_t bytes) 37 { 38 void *temp = malloc (bytes); 39 40 if (!temp) 41 memory_error_and_abort ("xmalloc"); 42 return (temp); 43 } 44 45 void * 46 xrealloc (void *pointer, size_t bytes) 47 { 48 void *temp; 49 50 if (!pointer) 51 temp = malloc (bytes); 52 else 53 temp = realloc (pointer, bytes); 54 55 if (!temp) 56 memory_error_and_abort ("xrealloc"); 57 58 return (temp); 59 } 60 61 #endif /* !ALREADY_HAVE_XMALLOC */ 62