Macro non_max 

macro_rules! non_max {
    ($val:expr) => { ... };
}

Creates a NonMax value at compile-time.

This macro checks at compile-time that the provided value is not the maximum value for its type. If the value is the maximum, the program will fail to compile.

Examples

let x = non_max!(123u8);

let x = non_max!(255u8); // This fails to compile

let x = non_max!(127i8); // i8::MAX fails

let x = non_max!(u16::MAX); // Explicit MAX fails