Util.c

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 */
 
#include <stdlib.h>
 
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
 
#include "MEM_guardedalloc.h"
 
#include "Util.h"
 
void *memdbl(void *mem, int *size_pr, int item_size)
{
  int cur_size = *size_pr;
  int new_size = cur_size ? (cur_size * 2) : 1;
  void *nmem = MEM_mallocN(new_size * item_size, "memdbl");
 
  memcpy(nmem, mem, cur_size * item_size);
  MEM_freeN(mem);
 
  *size_pr = new_size;
  return nmem;
}
 
char *string_dup(char *str)
{
  int len = strlen(str);
  char *nstr = MEM_mallocN(len + 1, "string_dup");
 
  memcpy(nstr, str, len + 1);
 
  return nstr;
}
 
void fatal(char *fmt, ...)
{
  va_list ap;
 
  fprintf(stderr, "FATAL: ");
  va_start(ap, fmt);
  vfprintf(stderr, fmt, ap);
  va_end(ap);
  fprintf(stderr, "\n");
 
  exit(1);
}