Other constants

Defines
#define	CIF_LINE_LENGTH   2048
	The maximum number of characters in one line of a CIF.
#define	CIF_NAMELEN_LIMIT   CIF_LINE_LENGTH
	The maximimum number of characters in a CIF data name.
#define	CIF_SCALARS
	The category code with which the library tags the unique loop (if any) in each data block or save frame that contains items not associated with an explicit CIF loop_ construct.