Macro enum_set_difference

macro_rules! enum_set_difference {
    ($value:path $(,)?) => { ... };
    ($value:path, $($rest:path),* $(,)?) => { ... };
}

Computes the difference of multiple enums or constants enumset at compile time.

The syntax used is enum_set_difference!(ENUM_A, ENUM_B, ENUM_C), computing the equivalent of ENUM_A - ENUM_B - ENUM_C at compile time. Each variant must be of the same type, or an error will occur at compile-time.

Examples

const SET_A: EnumSet<Enum> = enum_set!(Enum::A | Enum::B | Enum::D);
const SET_B: EnumSet<Enum> = enum_set!(Enum::B | Enum::C);
const CONST_SET: EnumSet<Enum> = enum_set_symmetric_difference!(SET_A, SET_B);
assert_eq!(CONST_SET, Enum::A | Enum::C | Enum::D);