How to specify the representation type for an enum in Rust to interface with C++?

Question

Is there a way I can make a C++ style enumeration with explicit representation type in Rust? Example:

enum class Number: int16_t {
    Zero, One, Two, Three,         


        

Answer 1

You can specify a representation for the enum.

#[repr(i16)]
enum Foo {
    One = 1,
    Two = 2,
}