Shapes

Header	Content	CCCL Availability	CUDA Toolkit Availability
cuda::std::size_t	Defines an extent of bytes	libcu++ 1.0.0 / CCCL 2.0.0	CUDA 10.2
cuda::aligned_size_t	Defines an extent of bytes with a statically defined alignment.	libcu++ 1.2.0 / CCCL 2.0.0	CUDA 11.1