16 lines
256 B
Rust
16 lines
256 B
Rust
pure fn even(x: uint) -> bool {
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if x < 2u {
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ret false;
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} else if x == 2u { ret true; } else { ret even(x - 2u); }
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}
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fn foo(x: uint) {
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if check even(x) {
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log(debug, x);
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} else {
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fail;
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}
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}
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fn main() { foo(2u); }
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