Integer Overflow

Integer overflow during arithmetic operations MUST cause a runtime panic.

On overflow, the program MUST terminate with exit code 101 and print an error message.

The following operations MAY overflow:

• Addition (+)
• Subtraction (-)
• Multiplication (*)
• Negation (- unary)

fn main() -> i32 {
    2147483647 + 1  // Runtime error: integer overflow
}

fn main() -> i32 {
    -2147483648 - 1  // Runtime error: integer overflow
}

Future versions of Rue may provide wrapping arithmetic operations that do not panic on overflow.