/*
 * common.h
 * Author: Hannah C. Tang (hctang@cs)
 *
 * Specification and implementation of common utility types
 * and functions
 *
 * $Id: common.h,v 1.1 2001/12/18 00:24:16 cse466_t Exp $
 *
 */

#ifndef COMMON_H
#define COMMON_H


/*
 * Boolean type
 */
typedef unsigned char Bool;
static const unsigned char Bool_true = 1;
static const unsigned char Bool_false = 0;


/*
 * Debugging output
 */
#ifdef NDEBUG  /* No debugging output */

  /* This prototype is only necessary if NDEBUG is defined.  It
   * just returns 0
   */
  int no_op( const char *format, ... )
  {
      return 0;
  }

# define print_debug no_op

#else  /* Debugging output, please */

# define print_debug printf

#endif /* NDEBUG */


#endif /* COMMON_H */