1BSD/trek/ranf.c

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ranf(max)
int	max;
{
	register int	t;

	if (max <= 0)
		return (0);
	t = rand() >> 5;
	return (t % max);
}


double franf()
{
	double		t;
	t = rand() & 077777;
	return (t / 32767.0);
}