#include <grass/gis.h>
#include <grass/stats.h>

void c_divr(DCELL *result, DCELL *values, int n)
{
	int count;
	DCELL prev;
	int i;

	/* sort the array of values, then count differences */

	n = sort_cell(values, n);

	if (n == 0)
	{
		*result = 0;
		return;
	}

	count = 1;
	prev = values[0];

	for (i = 0; i < n; i++)
		if (values[i] != prev)
		{
			prev = values[i];
			count++;
		}

	*result = (DCELL) count;
}

