[Cfp-interest 1399] normalized?

[Jim Thomas]

In minutes from August CFP meeting, of discussion about action item:
>     Jim: Add in the normalized discussion from Fred (CFP 1341, CFP 1342) to the agenda for next meeting.
>       What does “normalized” mean in C? (See CFP 1380)
…
>       Fred: That is not what you said in the classification/characterization macros.
>         Jim: Let me think about that. NORM_MAX would be the maximum model value.

An additional classification macro is needed to accommodate nonzero finite numbers that are not in the C floating-point model. C allows the implementation to define additional classification macros (beginning with FP_). Is this sufficient? Or should C add another standard classification macro, something like FP_NONMODEL?

It might be helpful in 7.12 to append "(see 5.2.4.2.2)" to 

The number classification macros
FP_INFINITE
FP_NAN
FP_NORMAL
FP_SUBNORMAL
FP_ZERO
represent the mutually exclusive kinds of floating-point values. 


- Jim Thomas


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