This page is part of the web mail archives of SRFI 77 from before July 7th, 2015. The new archives for SRFI 77 contain all messages, not just those from before July 7th, 2015.
Consider data types with 32 bits and 64 bits but which are not numbers in the sense that the generic arithmetic operations cannot be used with them without an explicit conversion. Appropriate type- specific arithmetic and logical operations could be defined for these types. This would not be especially difficult to implement in a well-designed Scheme. Regards, Alan -- Dr Alan Watson Centro de Radioastronomia y Astrofisica UNAM