18 lines
471 B
Rust
18 lines
471 B
Rust
// run-pass
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fn checktrue(rs: bool) -> bool { assert!((rs)); return true; }
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pub fn main() { let k = checktrue; evenk(42, k); oddk(45, k); }
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fn evenk(n: isize, k: fn(bool) -> bool) -> bool {
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println!("evenk");
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println!("{}", n);
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if n == 0 { return k(true); } else { return oddk(n - 1, k); }
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}
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fn oddk(n: isize, k: fn(bool) -> bool) -> bool {
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println!("oddk");
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println!("{}", n);
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if n == 0 { return k(false); } else { return evenk(n - 1, k); }
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}
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