libchill/allmem.c

   1 /* Implement runtime actions for CHILL.
   2    Copyright (C) 1992,1993 Free Software Foundation, Inc.
   3    Author: Wilfried Moser
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* As a special exception, if you link this library with other files,
  23    some of which are compiled with GCC, to produce an executable,
  24    this library does not by itself cause the resulting executable
  25    to be covered by the GNU General Public License.
  26    This exception does not however invalidate any other reasons why
  27    the executable file might be covered by the GNU General Public License.  */
  28
  29 #define __CHILL_LIB__
  30
  31 #include <stdlib.h>
  32 #include "rtltypes.h"
  33
  34 extern void __cause_ex1 (char *exname, char *file, int lineno);
  35
  36 /* define needed exceptions */
  37 EXCEPTION (protectionfail);
  38 EXCEPTION (rangefail);
  39 EXCEPTION (spacefail);
  40
  41 /*
  42  * function _allocate_memory
  43  *
  44  * parameters:
  45  *  ptr                 pointer to location where pointer should be written
  46  *  size                number of bytes to allocate
  47  *  filename            source file which issued the call
  48  *  linenumber          line number within that source file
  49  *
  50  * returns:
  51  *  void
  52  *
  53  * exceptions:
  54  *  spacefail
  55  *  protectionfail
  56  *  rangefail
  57  *
  58  * abstract:
  59  *  allocate memory from heap
  60  *
  61 */
  62
  63 void
  64 _allocate_memory (ptr, size, filename, linenumber)
  65      void **ptr;
  66      int size;
  67      char *filename;
  68      int   linenumber;
  69 {
  70   void  *tmp;
  71
  72   if (!ptr)
  73     __cause_ex1 ("protectionfail", filename, linenumber);
  74   if (size < 0)
  75     __cause_ex1 ("rangefail", filename, linenumber);
  76   tmp = malloc (size);
  77   if (!tmp)
  78     __cause_ex1 ("spacefail", filename, linenumber);
  79   *ptr = tmp;
  80 }