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2020-03-06libcamera: Add a C++20-compliant std::span<> implementationJacopo Mondi
C++20 will contain a std::span<> class that provides view over a contiguous sequence of objects, the storage of which is owned by some other object. Add a compatible implementation to the utils namespace. This will be used to implement array controls. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>