rust/src/test/ui/binary-op-on-double-ref.rs

fn main() {
    let v = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
    let vr = v.iter().filter(|x| {
        x % 2 == 0
        //~^ ERROR binary operation `%` cannot be applied to type `&&{integer}`
    });
    println!("{:?}", vr);
}
Detect double reference when applying binary op ```rust let vr = v.iter().filter(\|x\| { x % 2 == 0 }); ``` will now yield the following compiler output: ```bash ERROR binary operation `%` cannot be applied to type `&&_` NOTE this is a reference of a reference to a type that `%` can be applied to, you need to dereference this variable once for this operation to work NOTE an implementation of `std::ops::Rem` might be missing for `&&_` ``` The first NOTE is new. Bug #33877 2016-06-22 20:29:16 -05:00			`fn main() {`
			`let v = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];`
			`let vr = v.iter().filter(\|x\| {`
			`x % 2 == 0`
Ensure type is copyable before emitting note suggesting adding manual deref. drive-by: fix merge conflict; fix test expected error output post rebase. 2016-12-26 12:27:51 -06:00			//~^ ERROR binary operation `%` cannot be applied to type `&&{integer}`
Detect double reference when applying binary op ```rust let vr = v.iter().filter(\|x\| { x % 2 == 0 }); ``` will now yield the following compiler output: ```bash ERROR binary operation `%` cannot be applied to type `&&_` NOTE this is a reference of a reference to a type that `%` can be applied to, you need to dereference this variable once for this operation to work NOTE an implementation of `std::ops::Rem` might be missing for `&&_` ``` The first NOTE is new. Bug #33877 2016-06-22 20:29:16 -05:00			`});`
			`println!("{:?}", vr);`
			`}`