rust/tests/ui/lint/fn-ptr-comparisons-some.rs

18 lines
473 B
Rust

// This test checks that we lint on Option of fn ptr.
//
// https://github.com/rust-lang/rust/issues/134527.
//
//@ check-pass
unsafe extern "C" fn func() {}
type FnPtr = unsafe extern "C" fn();
fn main() {
let _ = Some::<FnPtr>(func) == Some(func as unsafe extern "C" fn());
//~^ WARN function pointer comparisons
// Undecided as of https://github.com/rust-lang/rust/pull/134536
assert_eq!(Some::<FnPtr>(func), Some(func as unsafe extern "C" fn()));
}