| #![allow( |
| dead_code, |
| non_snake_case, |
| non_camel_case_types, |
| non_upper_case_globals |
| )] |
| |
| #[repr(C, packed(2))] |
| #[derive(Debug, Default, Copy, Clone)] |
| pub struct Packed { |
| pub a: ::std::os::raw::c_char, |
| pub b: ::std::os::raw::c_short, |
| pub c: ::std::os::raw::c_char, |
| pub d: ::std::os::raw::c_int, |
| } |
| #[test] |
| fn bindgen_test_layout_Packed() { |
| assert_eq!( |
| ::std::mem::size_of::<Packed>(), |
| 10usize, |
| concat!("Size of: ", stringify!(Packed)) |
| ); |
| assert_eq!( |
| ::std::mem::align_of::<Packed>(), |
| 2usize, |
| concat!("Alignment of ", stringify!(Packed)) |
| ); |
| assert_eq!( |
| { |
| let struct_instance = unsafe { std::mem::zeroed::<Packed>() }; |
| let struct_ptr = &struct_instance as *const Packed; |
| let field_ptr = std::ptr::addr_of!(struct_instance.a); |
| 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!(Packed), "::", stringify!(a)) |
| ); |
| assert_eq!( |
| { |
| let struct_instance = unsafe { std::mem::zeroed::<Packed>() }; |
| let struct_ptr = &struct_instance as *const Packed; |
| let field_ptr = std::ptr::addr_of!(struct_instance.b); |
| 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() |
| }, |
| 2usize, |
| concat!("Offset of field: ", stringify!(Packed), "::", stringify!(b)) |
| ); |
| assert_eq!( |
| { |
| let struct_instance = unsafe { std::mem::zeroed::<Packed>() }; |
| let struct_ptr = &struct_instance as *const Packed; |
| let field_ptr = std::ptr::addr_of!(struct_instance.c); |
| 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() |
| }, |
| 4usize, |
| concat!("Offset of field: ", stringify!(Packed), "::", stringify!(c)) |
| ); |
| assert_eq!( |
| { |
| let struct_instance = unsafe { std::mem::zeroed::<Packed>() }; |
| let struct_ptr = &struct_instance as *const Packed; |
| let field_ptr = std::ptr::addr_of!(struct_instance.d); |
| 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() |
| }, |
| 6usize, |
| concat!("Offset of field: ", stringify!(Packed), "::", stringify!(d)) |
| ); |
| } |