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rustlings-exercises-completed/exercises/macros/macros4.rs

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// macros4.rs
// Make me compile! Execute `rustlings hint macros4` for hints :)
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// I AM NOT DONE
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macro_rules! my_macro {
() => {
println!("Check out my macro!");
}
($val:expr) => {
println!("Look at this other macro: {}", $val);
}
}
fn main() {
my_macro!();
my_macro!(7777);
}