projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| fecd2382 RP |
1 | /* xrealloc.c -new memory or bust- |
| 2 | Copyright (C) 1987, 1990, 1991 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 | /* static const char rcsid[] = "$Id$"; */ | |
| 22 | ||
| 23 | /* | |
| 24 | ||
| 25 | NAME | |
| 26 | xrealloc () - get more memory or bust | |
| 27 | INDEX | |
| 28 | xrealloc () uses realloc () | |
| 29 | SYNOPSIS | |
| 30 | char *my_memory; | |
| 31 | ||
| 32 | my_memory = xrealloc (my_memory, 42); | |
| 33 | / * my_memory gets (perhaps new) address of 42 chars * / | |
| 34 | ||
| 35 | DESCRIPTION | |
| 36 | ||
| 37 | Use xrealloc () as an "error-free" realloc ().It does almost the same | |
| 38 | job. When it cannot honour your request for memory it BOMBS your | |
| 39 | program with a "virtual memory exceeded" message. Realloc() returns | |
| 40 | NULL and does not bomb your program. | |
| 41 | ||
| 42 | SEE ALSO | |
| 43 | realloc () | |
| 44 | */ | |
| 45 | ||
| 46 | #ifdef __STDC__ | |
| 47 | #include <stdlib.h> | |
| 48 | #else | |
| 49 | #ifdef USG | |
| 50 | #include <malloc.h> | |
| 51 | #else | |
| 52 | char *realloc (); | |
| 53 | #endif /* USG */ | |
| 54 | #endif /* __STDC__ */ | |
| 55 | ||
| 56 | #define error as_fatal | |
| 57 | ||
| 58 | char * | |
| 59 | xrealloc (ptr, n) | |
| 60 | register char *ptr; | |
| 61 | long n; | |
| 62 | { | |
| 63 | void error(); | |
| 64 | ||
| 65 | if ((ptr = realloc (ptr, (unsigned)n)) == 0) | |
| 66 | error ("virtual memory exceeded"); | |
| 67 | return (ptr); | |
| 68 | } | |
| 69 | ||
| 70 | /* end: xrealloc.c */ |