gas/xmalloc.c

   1 /* xmalloc.c - get memory or bust
   2
   3    Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
   4
   5    This file is part of GAS, the GNU Assembler.
   6
   7    GAS is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    GAS is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GAS; see the file COPYING.  If not, write to
  19    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /*
  22   NAME
  23   xmalloc() - get memory or bust
  24   INDEX
  25   xmalloc() uses malloc()
  26
  27   SYNOPSIS
  28   char *        my_memory;
  29
  30   my_memory = xmalloc(42); / * my_memory gets address of 42 chars * /
  31
  32   DESCRIPTION
  33
  34   Use xmalloc() as an "error-free" malloc(). It does almost the same job.
  35   When it cannot honour your request for memory it BOMBS your program
  36   with a "virtual memory exceeded" message. Malloc() returns NULL and
  37   does not bomb your program.
  38
  39   SEE ALSO
  40   malloc()
  41
  42   */
  43 #include <stdio.h>
  44
  45 #ifdef __STDC__
  46 #include <stdlib.h>
  47 #else
  48 #ifdef USG
  49 #include <malloc.h>
  50 #else
  51 char *  malloc();
  52 #endif /* USG */
  53 #endif /* __STDC__ */
  54
  55 #define error as_fatal
  56
  57 char * xmalloc(n)
  58 long n;
  59 {
  60         char *  retval;
  61         void    error();
  62
  63         if ((retval = malloc ((unsigned)n)) == NULL)
  64             {
  65                     error("virtual memory exceeded");
  66             }
  67         return (retval);
  68 }
  69
  70 /* end of xmalloc.c */