rust/tests/ui/mir/null/zero_sized_access.rs

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// Make sure that we don't insert a check for zero-sized reads or writes to
// null, because they are allowed.
//@ run-pass
//@ compile-flags: -C debug-assertions
fn main() {
let ptr: *mut () = std::ptr::null_mut();
unsafe {
*(ptr) = ();
}
let ptr1: *const () = std::ptr::null_mut();
unsafe {
let _ptr = *ptr1;
}
}