Function highestByteIndex

pkg/util/encoding/encoding.go:390–404

highestByteIndex returns the index (0 to 7) of the highest nonzero byte in v.

(v uint64)

// highestByteIndex returns the index (0 to 7) of the highest nonzero byte in v.
func highestByteIndex(v uint64) int {
	l := 0
	if v > 0xffffffff {
		v >>= 32
		l += 4
	}
	if v > 0xffff {
		v >>= 16
		l += 2
	}
	if v > 0xff {
		l++
	}
	return l
}

// EncLenUvarintAscending returns the encoding length for EncodeUvarintAscending
// without actually encoding.