17 lines
307 B
Rust
17 lines
307 B
Rust
// error-pattern:Number is odd
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pure fn even(x: uint) -> bool {
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if x < 2u {
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return false;
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} else if x == 2u { return true; } else { return even(x - 2u); }
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}
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fn foo(x: uint) {
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if even(x) {
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log(debug, x);
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} else {
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fail ~"Number is odd";
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}
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}
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fn main() { foo(3u); }
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