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25 lines
503 B
Rust
25 lines
503 B
Rust
// ./src/macros/repeat.md
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// `find_min!` will calculate the minimum of any number of arguments.
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macro_rules! find_min {
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// Base case:
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($x:expr) => ($x);
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// `$x` followed by at least one `$y,`
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($x:expr, $($y:expr),+) => (
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// Call `find_min!` on the tail `$y`
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std::cmp::min($x, find_min!($($y),+))
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)
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}
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fn part0() {
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println!("{}", find_min!(1));
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println!("{}", find_min!(1 + 2, 2));
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println!("{}", find_min!(5, 2 * 3, 4));
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}
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pub fn main() {
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part0();
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}
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