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#![deny(map_unit_fn)]
fn foo(items: &mut Vec<u8>) {
items.sort();
}
fn main() {
let mut x: Vec<Vec<u8>> = vec![vec![0, 2, 1], vec![5, 4, 3]];
x.iter_mut().map(foo);
//~^ ERROR `Iterator::map` call that discard the iterator's values
x.iter_mut().map(|items| {
//~^ ERROR `Iterator::map` call that discard the iterator's values
items.sort();
});
let f = |items: &mut Vec<u8>| {
items.sort();
};
x.iter_mut().map(f);
//~^ ERROR `Iterator::map` call that discard the iterator's values
}
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