//   test the random number generator:

//   first, see if setting to a "random" value based on time() will work:

float  x, t;
int	   seed, seed2;

seed2 = rseed();   // randomize the seed
printf( "randomized seed = %d\n", seed2 );

x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n\n", x );

printf( "reusing previous randomized seed\n" );
setseed( seed2 );  // re-use the saved (randomized) seed
x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n\n", x );

seed2 = rseed(); // re-randomize the seed; no change if less than 1 sec
                 // since the last call
printf( "randomized seed = %d\n", seed2 );
x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n", x );
x = rand2();
printf( "x = %20.10f\n", x );