| 1 | /* xrealloc.c -new memory or bust- |
| 2 | Copyright (C) 1987 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GAS, the GNU Assembler. |
| 5 | |
| 6 | GAS 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 1, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GAS 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 GAS; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | |
| 21 | /* |
| 22 | |
| 23 | NAME |
| 24 | xrealloc () - get more memory or bust |
| 25 | INDEX |
| 26 | xrealloc () uses realloc () |
| 27 | SYNOPSIS |
| 28 | char *my_memory; |
| 29 | |
| 30 | my_memory = xrealloc (my_memory, 42); |
| 31 | / * my_memory gets (perhaps new) address of 42 chars * / |
| 32 | |
| 33 | DESCRIPTION |
| 34 | |
| 35 | Use xrealloc () as an "error-free" realloc ().It does almost the same |
| 36 | job. When it cannot honour your request for memory it BOMBS your |
| 37 | program with a "virtual memory exceeded" message. Realloc() returns |
| 38 | NULL and does not bomb your program. |
| 39 | |
| 40 | SEE ALSO |
| 41 | realloc () |
| 42 | */ |
| 43 | |
| 44 | #ifdef USG |
| 45 | #include <malloc.h> |
| 46 | #endif |
| 47 | |
| 48 | char * |
| 49 | xrealloc (ptr, n) |
| 50 | register char *ptr; |
| 51 | long n; |
| 52 | { |
| 53 | char *realloc (); |
| 54 | void error(); |
| 55 | |
| 56 | if ((ptr = realloc (ptr, (unsigned)n)) == 0) |
| 57 | error ("virtual memory exceeded"); |
| 58 | return (ptr); |
| 59 | } |
| 60 | |
| 61 | /* end: xrealloc.c */ |