Pin<&mut CxxVector>, out_qr_size: &mut usize, ) -> bool; } } Students may be curious about the semantics of the out_qr_size output. This is not the size of the vector, but the size of the QR code (and

Pin<&mut CxxVector>, out_qr_size: &mut usize, ) -> bool; } } Students may be curious about the semantics of the out_qr_size output. This is not the size of the vector, but the size of the QR code (and

This can be a good thing, but it can also be extra work. Moving a unique_ptr requires additional semantics. [http://www.cplusplus.com/reference/memory/unique_ptr/operator=/] Recommendation: Smart pointers