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//@ run-pass
#![allow(non_camel_case_types)]
type an_int = isize;
fn cmp(x: Option<an_int>, y: Option<isize>) -> bool {
x == y
}
pub fn main() {
assert!(!cmp(Some(3), None));
assert!(!cmp(Some(3), Some(4)));
assert!(cmp(Some(3), Some(3)));
assert!(cmp(None, None));
}
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