package number type Number interface { int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | uintptr } func NumLen[T Number](number T) T { if number == 0 { return 1 } var count T = 0 if number < 0 { for number < 0 { number /= 10 count++ } } else { for number > 0 { number /= 10 count++ } } return count }