tests/expectations/tests/issue-1995.rs

#![allow(
    dead_code,
    non_snake_case,
    non_camel_case_types,
    non_upper_case_globals
)]

/// This is a constant that has a docstring
///
/// And expected to be found in generated bindings code too.
pub const FOO: ::std::os::raw::c_int = 1;
/// This is a constant that has a docstring
///
/// And expected to be found in generated bindings code too.
#[repr(C)]
#[derive(Debug, Default, Copy, Clone)]
pub struct Bar {
    pub baz: ::std::os::raw::c_int,
}
#[test]
fn bindgen_test_layout_Bar() {
    assert_eq!(
        ::std::mem::size_of::<Bar>(),
        4usize,
        concat!("Size of: ", stringify!(Bar))
    );
    assert_eq!(
        ::std::mem::align_of::<Bar>(),
        4usize,
        concat!("Alignment of ", stringify!(Bar))
    );
    assert_eq!(
        {
            let struct_instance = unsafe { std::mem::zeroed::<Bar>() };
            let struct_ptr = &struct_instance as *const Bar;
            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!(Bar), "::", stringify!(baz))
    );
}