rafaelcaricio/lvgl-rs
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LVGL handles zero sized

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Rafael Caricio 2020-06-18 23:56:09 +02:00 committed by Rafael Carício
parent 3e7e056da6
commit e3fd8d5736
1 changed files with 1 additions and 3 deletions
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4
lvgl/src/mem.rs
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@ -7,13 +7,11 @@ pub(crate) struct Box<T>(NonNull<T>);
impl<T> Box<T> { impl<T> Box<T> {
pub fn new(inner: T) -> LvResult<Box<T>> { pub fn new(inner: T) -> LvResult<Box<T>> {
assert_ne!(mem::size_of::<T>(), 0, "We don't handle ZSTs");
let size = mem::size_of::<T>(); let size = mem::size_of::<T>();
let inner = unsafe { let inner = unsafe {
// LVGL already aligns the memory address for us
let ptr = lvgl_sys::lv_mem_alloc(size as lvgl_sys::size_t) as *mut T; let ptr = lvgl_sys::lv_mem_alloc(size as lvgl_sys::size_t) as *mut T;
// LVGL should align the memory address for us!
assert_eq!( assert_eq!(
ptr as usize % mem::align_of::<T>(), ptr as usize % mem::align_of::<T>(),
0, 0,