[cfp-interest 3868] Re: Comments re Annex F Introduction

[Damian McGuckin]

On Tue, 14 Apr 2026, Jim Thomas wrote:

>> That's what I thought and have assumed for decades.  However, when you 
>> read F.10.1#16, it says not (at least as I read it) - but only for the 
>> functions.
>>
>> 	ISO/IEC 60559 specifies correct rounding for the operations in
>> 	Table F.2 recommended by ISO/IEC 60559, and thereby preserves
>> 	useful mathematical properties such as symmetry, monotonicity, and
>> 	periodicity. ... The C functions in the table, however, are not
>> 	required to be correctly rounded, but implementations should still
>> 	preserve as many of these useful mathematical properties as
>> 	possible.
>
> Yikes! That should say "operations in Table F.3", as it does in C23.

Sorry, I did not cross check with C23. Do we have access to the real C23?

> Somehow it got changed in a C2Y draft.

Oops.

F.3#20 already says that Table F.3 does not need to be correctly rounded. 
I will adjust the text in F.10.1#16.  The question is whether F.10.1#16 
belongs in F.3. We can address that tomorrow if we get time.

> The table doesn?t use lines within cells that way. A comma is also 
> needed in your third column after "F.10.7.10?.

OK.  Will fix that table.

Thanks - Damian