[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: external representations

This page is part of the web mail archives of SRFI 70 from before July 7th, 2015. The new archives for SRFI 70 contain all messages, not just those from before July 7th, 2015.

On Jun 23, 2005, at 11:25 PM, William D Clinger wrote:

Interesting.  Can you tell me of any hardware that actually
does this?

Offhand, no.

This is why I believe, however, that NaNs that can be used as inputs to or can be results of floating-point processing should have external representations. If you want to define other objects that cannot arise as outputs or inputs to floating-point operations that otherwise have the form of a NaN (maximum exponent, nonzero mantissa), then I don't think these things should be called NaNs, precisely, and I don't think that they need external representations.