is there a nice way to have an overloaded function that accepts all (nullable) unsigned types, and t...

# getting-started

[Adam S]

is there a nice way to have an overloaded function that accepts all (nullable) unsigned types, and to call that function with 0u? At the moment Kotlin doesn’t know which unsigned type to use, and errors with Overload resolution ambiguity.

unsignedOverload_kt.cpp

[Adam S]

closest workaround I can think of is to use different parameter names for each function

fun operation(uByte: UByte?): Unit = operation(uByte.toString())

and while there’s still an error with operation(0u), at least it can be specified with operation(uLong = 0u)

[Laertes Moustakas]

It appears to be an issue
(https://youtrack.jetbrains.com/issue/KT-46360) that has been present for some time.

0u.javaClass.typeName outputs kotlin.UInt, yet it still prints this error on operation(0u). You can use parameter names like you did with operation(uLong = 0u), but you can also call one of the "casting" methods, such as operation(0u.toUInt()), operation(0u.toUShort()), etc.

As for a generic method matching all unsingned types, I'm not sure how. Looking at the API, it doesn't seem like they extend any other types like Number, they only implement Comparable<T>.

[Adam S]

thanks for finding that issue @Laertes Moustakas

I’ve made an additional issue https://youtrack.jetbrains.com/issue/KT-55999