Macro pretty_panic::pretty_panic

macro_rules! pretty_panic {
    () => { ... };
    ($fname : ident) => { ... };
}

Sets the panic handler function to a function of your choosing. Example:

use pretty_panic::pretty_panic;
use std::panic::PanicInfo;
fn main() {
    pretty_panic!(my_panic);

    panic!("a panic message")
}

fn my_panic() -> ! {
    loop { /* who needs to actually do something when they panic? }
}

The panic handler MUST return the never type, or the program will not compile!