(j3.2006) EX editing

John Reid John.Reid
Thu Apr 6 07:00:39 EDT 2017



Bill Long wrote:
> I recall there was an edit before to fix a missing 0X in the Note. Because it conflicted with 13.7.2.3.2p7
>
> "	? An input field that is a hexadecimal-significand number consists of an optional sign, followed by the hexadecimal indicator which is the digit 0 immediately followed by the letter X, followed by a hexadecimal significand followed by a hexadecimal exponent.?
>
> on the grounds that what you output with EX should be readable with EX.  But the output form at 13.7.2.3.6p5 does look wrong.

I have proposed the edit for the UK vote.

I am also suggesting

[278:20] At the end of the third bullet, add "x_0 has the value 1 unless 
the internal value is zero." and

[278:6+] In the final value in NOTE 13.14, change "3" to "4".

Cheers,

John.

>
> Cheers,
> Bill
>
>
> On Apr 5, 2017, at 2:47 PM, John Reid <John.Reid at stfc.ac.uk> wrote:
>
>> Hi,
>>
>> I think there is a mistake in 13.7.2.3.6 EX editing (page 278). The IEEE
>> standard requires the "hexIndicator" 0X to appear before the first digit
>> and it does in NOTE 13.14, but it is not mentioned in the text. I
>> suggest the edit
>> [278:15] Before "x_0" add "0X".
>>
>> Is it intended that x_0 be a binary digit? NOTE 13.14 suggests that this
>> is so. Should we say so? If not, is it processor dependent? Perhaps the
>> output in the second example of NOTE 13.14 should be -0XF.A000P+000
>>
>> Cheers,
>>
>> John.
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>
> Bill Long                                                                       longb at cray.com
> Principal Engineer, Fortran Technical Support &   voice:  651-605-9024
> Bioinformatics Software Development                      fax:  651-605-9143
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