How to overload the unary operators of `Int`?

# stdlib

[Settingdust]

How to overload the unary operators of Int?

[dmitriy.novozhilov]

You can't
Operator functions on primitives are member functions, which always wins over extensions

[Joffrey]

I guess that's a good thing too. It would be quite unexpected that using +42 anywhere would be different from 42 - and that's not even considering the heresy of overriding -42 (by the way, in those cases it would be called overriding rather than overloading, since these operators already exist for these types)

[Klitos Kyriacou]

A related thing is that you can't write the literal for Int.MIN_VALUE because -2147483648 means -(<tel:[phone]|2147483648>), i.e. it gets parsed as an Int to which the unary operator - is applied, and 2147483648 is not a valid Int. On the other hand, other languages treat negative numbers as literals, i.e. the "-" is itself part of the literal. But not in Kotlin.