rust/src/test/ui/consts/zst_no_llvm_alloc.rs

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2019-08-17 04:31:09 -05:00
// run-pass
#[repr(align(4))]
struct Foo;
static FOO: Foo = Foo;
fn main() {
let x: &'static () = &();
assert_eq!(x as *const () as usize, 1);
let x: &'static Foo = &Foo;
assert_eq!(x as *const Foo as usize, 4);
// statics must have a unique address
assert_ne!(&FOO as *const Foo as usize, 4);
assert_eq!(<Vec<i32>>::new().as_ptr(), <&[i32]>::default().as_ptr());
assert_eq!(<Box<[i32]>>::default().as_ptr(), (&[]).as_ptr());
}