Method drop

crates/cust/src/memory/unified.rs:229–244

Destroy a `UnifiedBox`, returning an error. Deallocating unified memory can return errors from previous asynchronous work. This function destroys the given box and returns the error and the un-destroyed box on failure. # Example ``` # let _context = cust::quick_init().unwrap(); use cust::memory::*; let x = UnifiedBox::new(5).unwrap(); match UnifiedBox::drop(x) { Ok(()) => println!("Successfully

(mut uni_box: UnifiedBox<T>)

    /// }
    /// ```
    pub fn drop(mut uni_box: UnifiedBox<T>) -> DropResult<UnifiedBox<T>> {
        if uni_box.ptr.is_null() {
            return Ok(());
        }

        let ptr = mem::replace(&mut uni_box.ptr, UnifiedPointer::null());
        unsafe {
            match cuda_free_unified(ptr) {
                Ok(()) => {
                    mem::forget(uni_box);
                    Ok(())
                }
                Err(e) => Err((e, UnifiedBox { ptr })),
            }
        }
    }
}
impl<T: DeviceCopy> Drop for UnifiedBox<T> {
    fn drop(&mut self) {