/src/test/run-pass/tail-direct.rs

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4// -*- rust -*-
5fn main() { assert (even(42)); assert (odd(45)); }
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7fn even(n: int) -> bool { if n == 0 { return true; } else { return odd(n - 1); } }
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9fn odd(n: int) -> bool { if n == 0 { return false; } else { return even(n - 1); } }