/
struct_ptr.rs
83 lines (82 loc) · 1.89 KB
/
struct_ptr.rs
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#![allow(
dead_code,
non_snake_case,
non_camel_case_types,
non_upper_case_globals
)]
#[repr(C)]
#[derive(Debug, Default, Copy, Clone)]
pub struct foo {
pub inner: ::std::os::raw::c_char,
}
#[test]
fn bindgen_test_layout_foo() {
const UNINIT: ::std::mem::MaybeUninit<foo> =
::std::mem::MaybeUninit::uninit();
let ptr = UNINIT.as_ptr();
assert_eq!(
::std::mem::size_of::<foo>(),
1usize,
concat!("Size of: ", stringify!(foo))
);
assert_eq!(
::std::mem::align_of::<foo>(),
1usize,
concat!("Alignment of ", stringify!(foo))
);
assert_eq!(
unsafe { ::std::ptr::addr_of!((*ptr).inner) as usize - ptr as usize },
0usize,
concat!(
"Offset of field: ",
stringify!(foo),
"::",
stringify!(inner)
)
);
}
pub type foo_ptr = *const foo;
#[repr(C)]
#[derive(Debug, Default, Copy, Clone)]
pub struct bar {
pub inner: ::std::os::raw::c_char,
}
#[test]
fn bindgen_test_layout_bar() {
const UNINIT: ::std::mem::MaybeUninit<bar> =
::std::mem::MaybeUninit::uninit();
let ptr = UNINIT.as_ptr();
assert_eq!(
::std::mem::size_of::<bar>(),
1usize,
concat!("Size of: ", stringify!(bar))
);
assert_eq!(
::std::mem::align_of::<bar>(),
1usize,
concat!("Alignment of ", stringify!(bar))
);
assert_eq!(
unsafe { ::std::ptr::addr_of!((*ptr).inner) as usize - ptr as usize },
0usize,
concat!(
"Offset of field: ",
stringify!(bar),
"::",
stringify!(inner)
)
);
}
pub type bar_ptr = *mut bar;
extern "C" {
pub fn takes_foo_ptr(arg1: foo_ptr);
}
extern "C" {
pub fn takes_foo_struct(arg1: foo);
}
extern "C" {
pub fn takes_bar_ptr(arg1: bar_ptr);
}
extern "C" {
pub fn takes_bar_struct(arg1: bar);
}