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#![allow(
dead_code,
non_snake_case,
non_camel_case_types,
non_upper_case_globals
)]
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct A {
pub len: usize,
pub offset: isize,
pub next: *mut A,
}
#[test]
fn bindgen_test_layout_A() {
assert_eq!(
::std::mem::size_of::<A>(),
24usize,
concat!("Size of: ", stringify!(A))
);
assert_eq!(
::std::mem::align_of::<A>(),
8usize,
concat!("Alignment of ", stringify!(A))
);
fn test_field_len() {
assert_eq!(
unsafe {
let uninit = ::std::mem::MaybeUninit::<A>::uninit();
let ptr = uninit.as_ptr();
::std::ptr::addr_of!((*ptr).len) as usize - ptr as usize
},
0usize,
concat!("Offset of field: ", stringify!(A), "::", stringify!(len))
);
}
test_field_len();
fn test_field_offset() {
assert_eq!(
unsafe {
let uninit = ::std::mem::MaybeUninit::<A>::uninit();
let ptr = uninit.as_ptr();
::std::ptr::addr_of!((*ptr).offset) as usize - ptr as usize
},
8usize,
concat!(
"Offset of field: ",
stringify!(A),
"::",
stringify!(offset)
)
);
}
test_field_offset();
fn test_field_next() {
assert_eq!(
unsafe {
let uninit = ::std::mem::MaybeUninit::<A>::uninit();
let ptr = uninit.as_ptr();
::std::ptr::addr_of!((*ptr).next) as usize - ptr as usize
},
16usize,
concat!("Offset of field: ", stringify!(A), "::", stringify!(next))
);
}
test_field_next();
}
impl Default for A {
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()
}
}
}
|
