rust/tests/ui/unit_cmp.rs

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#![feature(plugin)]
#![plugin(clippy)]
#![warn(unit_cmp)]
#![allow(no_effect, unnecessary_operation)]
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#[derive(PartialEq)]
pub struct ContainsUnit(()); // should be fine
fn main() {
// this is fine
if true == false {
}
// this warns
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if { true; } == { false; } {
}
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if { true; } > { false; } {
}
}