func sort.median_func

3 uses

	sort (current package)
		zsortfunc.go#L284: 		j = median_func(data, i, j, k, &swaps)
		zsortfunc.go#L307: func median_func(data lessSwap, a, b, c int, swaps *int) int {
		zsortfunc.go#L316: 	return median_func(data, a-1, a, a+1, swaps)