21 lines
415 B
Rust
21 lines
415 B
Rust
fn main() {
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let mut x: &[_] = &[1, 2, 3, 4];
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let mut result = vec!();
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loop {
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x = match *x {
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[1, n, 3, ref rest @ ..] => {
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result.push(n);
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rest
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}
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[n, ref rest @ ..] => {
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result.push(n);
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rest
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}
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[] =>
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break
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}
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}
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assert_eq!(result, [2, 4]);
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}
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