11 lines
223 B
Rust
11 lines
223 B
Rust
pure fn is_even(i: int) -> bool { (i%2) == 0 }
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fn even(i: int) : is_even(i) -> int { i }
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fn f() {
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let mut x: int = 10;
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while 1 == 1 { x = 10; }
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even(x); //~ ERROR unsatisfied precondition
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}
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fn main() { f(); }
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