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// Check that we detect unused values that are cast to other things.
// The problem was specified to casting to `*`, as creating unsafe
// pointers was not being fully checked. Issue #20791.
//@ run-rustfix
#![allow(unused_variables)]
fn main() {
let x: &i32 = &42;
let y = x as *const i32; //~ ERROR [E0381]
}
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