panic - Rust By Example
Description: A description

# `panic`

The simplest error handling mechanism we will see is `panic`. It prints an error message, starts unwinding the stack, and usually exits the program. Here, we explicitly call `panic` on our error condition:

    fn give_princess(gift: &str) {
        // Princesses hate snakes, so we need to stop if she disapproves!
        if gift == "snake" { panic!("AAAaaaaa!!!!"); }

        println!("I love {}s!!!!!", gift);
    }

    fn main() {
        give_princess("teddy bear");
        give_princess("snake");
    }