/*
   rand.c   MR 24/07/00
               07/06/00

   ----------------------------------------------------------------------
   Copyright (C) 2000 Menno Rubingh
  
   This source code / program is free software; you are allowed to 
   redistribute it and/or to modify it under the terms of the GNU Public 
   Licence (GNU GPL) as published by the Free Software Foundation.  See the 
   file 'COPYING' which should have accompanied this source file.  

   This program comes with ABSOLUTELY NO WARRANTY.
   ----------------------------------------------------------------------
*/

#include <stdlib.h>

int n_rand( unsigned int m )
	/* Return random integer in [ 0, m ). */
	/* Return 0 if m == 0. */
	{
	unsigned int K;

	if ( m == 0 ) { return 0; }

	K = ((unsigned int)RAND_MAX + m) / m;
	return ( rand() / K );
	}

double f_rand( double max )
	//Return a ''double'' random number in interval [ 0.0, max ].
	{
	return ( max * (double)rand() / RAND_MAX );
	}