| #![allow( |
| dead_code, |
| non_snake_case, |
| non_camel_case_types, |
| non_upper_case_globals |
| )] |
| |
| pub enum Bar {} |
| |
| #[repr(C)] |
| #[derive(Debug, Copy, Clone)] |
| pub struct Foo { |
| pub baz: *mut Bar, |
| } |
| #[test] |
| fn bindgen_test_layout_Foo() { |
| assert_eq!( |
| ::std::mem::size_of::<Foo>(), |
| 8usize, |
| concat!("Size of: ", stringify!(Foo)) |
| ); |
| assert_eq!( |
| ::std::mem::align_of::<Foo>(), |
| 8usize, |
| concat!("Alignment of ", stringify!(Foo)) |
| ); |
| assert_eq!( |
| { |
| let struct_instance = unsafe { std::mem::zeroed::<Foo>() }; |
| let struct_ptr = &struct_instance as *const Foo; |
| let field_ptr = std::ptr::addr_of!(struct_instance.baz); |
| let struct_address = struct_ptr as usize; |
| let field_address = field_ptr as usize; |
| std::mem::forget(struct_instance); |
| field_address.checked_sub(struct_address).unwrap() |
| }, |
| 0usize, |
| concat!("Offset of field: ", stringify!(Foo), "::", stringify!(baz)) |
| ); |
| } |
| impl Default for Foo { |
| fn default() -> Self { |
| let mut s = ::std::mem::MaybeUninit::<Self>::uninit(); |
| unsafe { |
| ::std::ptr::write_bytes(s.as_mut_ptr(), 0, 1); |
| s.assume_init() |
| } |
| } |
| } |