gas/xmalloc.c

   1 /* xmalloc.c - get 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 /* static const char rcsid[] = "$Id$"; */
  21
  22 /*
  23 NAME
  24         xmalloc() - get memory or bust
  25 INDEX
  26         xmalloc() uses malloc()
  27
  28 SYNOPSIS
  29         char *  my_memory;
  30
  31         my_memory = xmalloc(42); / * my_memory gets address of 42 chars * /
  32
  33 DESCRIPTION
  34
  35         Use xmalloc() as an "error-free" malloc(). It does almost the same job.
  36         When it cannot honour your request for memory it BOMBS your program
  37         with a "virtual memory exceeded" message. Malloc() returns NULL and
  38         does not bomb your program.
  39
  40 SEE ALSO
  41         malloc()
  42
  43 */
  44 #include <stdio.h>
  45
  46 #ifdef __STDC__
  47 #include <stdlib.h>
  48 #else
  49 #ifdef USG
  50 #include <malloc.h>
  51 #else
  52   char *        malloc();
  53 #endif /* USG */
  54 #endif /* __STDC__ */
  55
  56 #define error as_fatal
  57
  58 char * xmalloc(n)
  59      long n;
  60 {
  61   char *        retval;
  62   void  error();
  63
  64   if ((retval = malloc ((unsigned)n)) == NULL)
  65     {
  66       error("virtual memory exceeded");
  67     }
  68   return (retval);
  69 }
  70
  71 /* end: xmalloc.c */