/* memory allocation routines with error checking.   Copyright 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.   This file is part of the libiberty library.Libiberty is free software; you can redistribute it and/ormodify it under the terms of the GNU Library General PublicLicense as published by the Free Software Foundation; eitherversion 2 of the License, or (at your option) any later version.Libiberty is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNULibrary General Public License for more details.You should have received a copy of the GNU Library General PublicLicense along with libiberty; see the file COPYING.LIB.  Ifnot, write to the Free Software Foundation, Inc., 675 Mass Ave,Cambridge, MA 02139, USA.  */#include "ansidecl.h"#include "libiberty.h"#include <stdio.h>#ifdef __STDC__#include <stddef.h>#else#define size_t unsigned long#endif/* For systems with larger pointers than ints, these must be declared.  */PTR malloc PARAMS ((size_t));PTR realloc PARAMS ((PTR, size_t));/* The program name if set.  */static const char *name = "";/* The initial sbrk, set when the program name is set.  */static char *first_break = NULL;voidxmalloc_set_program_name (s)     const char *s;{  name = s;  if (first_break == NULL)    first_break = (char *) sbrk (0);}PTRxmalloc (size)    size_t size;{  PTR newmem;  if (size == 0)    size = 1;  newmem = malloc (size);  if (!newmem)    {      extern char **environ;      size_t allocated;      if (first_break != NULL)	allocated = (char *) sbrk (0) - first_break;      else	allocated = (char *) sbrk (0) - (char *) &environ;      fprintf (stderr,	       "\n%s%sCan not allocate %lu bytes after allocating %lu bytes\n",	       name, *name ? ": " : "",	       (unsigned long) size, (unsigned long) allocated);      xexit (1);    }  return (newmem);}PTRxrealloc (oldmem, size)    PTR oldmem;    size_t size;{  PTR newmem;  if (size == 0)    size = 1;  if (!oldmem)    newmem = malloc (size);  else    newmem = realloc (oldmem, size);  if (!newmem)    {      extern char **environ;      size_t allocated;      if (first_break != NULL)	allocated = (char *) sbrk (0) - first_break;      else	allocated = (char *) sbrk (0) - (char *) &environ;      fprintf (stderr,	       "\n%s%sCan not reallocate %lu bytes after allocating %lu bytes\n",	       name, *name ? ": " : "",	       (unsigned long) size, (unsigned long) allocated);      xexit (1);    }  return (newmem);}