11 lines
260 B
Rust
11 lines
260 B
Rust
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fn is_even(&&x: uint) -> bool { (x % 2u) == 0u }
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fn main() {
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assert ![1u, 2u].all(is_even);
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assert [2u, 4u].all(is_even);
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assert [].all(is_even);
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assert !some(1u).all(is_even);
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assert some(2u).all(is_even);
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assert none.all(is_even);
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}
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