[R6RS] division by exact zero (again, sorry)
William D Clinger
will at ccs.neu.edu
Tue Mar 6 07:24:50 EST 2007
> The current draft contains the example:
> (/ 0 0) => &assertion exception or +nan.0
> At what point did we decide that this could produce +nan.0?
I made the change in revision 806, 30 August 2006.
The log message was:
Corrected examples for / in document/base.tex.
Examination of the editors' correspondence on that
date shows that Mike and I wanted to correct the
examples in a certain way, but that Kent objected,
advocating semantics that seemed plainly wrong to
me. Eventually Kent relented in part, and I said
I would make the changes to which I thought Kent
had agreed. I must have misinterpreted Kent's
position on (/ 0 0).
I would prefer (/ 0 0) be forbidden to evaluate
to any number at all.
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