func math/bits.TrailingZeros

4 uses

	math/bits (current package)
		bits.go#L53: func TrailingZeros(x uint) int {

	math/big
		nat.go#L673: 	return i*_W + uint(bits.TrailingZeros(uint(x[i])))
		natconv.go#L285: 		shift := uint(bits.TrailingZeros(uint(b))) // shift > 0 because b >= 2

	strconv
		itoa.go#L162: 		shift := uint(bits.TrailingZeros(uint(base))) & 7