package number import ( "strconv" ) // Integer is a constraint that permits any integer type. type Integer interface { ~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr } func ParseInt[T Integer](s string) T { r, _ := strconv.ParseInt(s, 10, 64) return T(r) }