webservices: allocate enough memory for WS_XML_TEXT_TYPE_DOUBLE (Valgrind) (try 2)

[Alexandre Julliard]

Hans Leidekker <hans at codeweavers.com> writes:

> On Wed, 2016-12-21 at 09:38 +0100, Alexandre Julliard wrote:
>> Austin English <austinenglish at gmail.com> writes:
>> 
>> > On Wed, Dec 14, 2016 at 4:45 PM, Marvin <testbot at winehq.org> wrote:
>> >> Thank you for your contribution to Wine!
>> >>
>> >> This is an automated notification to let you know that your patch has
>> >> been reviewed and its status set to "Assigned".
>> >>
>> >> This means that the patch has been assigned to a reviewer. If the
>> >> reviewer signs off on the patch, it will be committed, otherwise
>> >> you'll receive advice on how to improve it. If you don't hear anything
>> >> after a couple of weeks, please resend the patch.
>> >
>> > This shows in the tracker as assigned to Hans, but Hans signed off a week ago.
>> 
>> Henri objected, and I agree, that we need to understand what's going on,
>> and in particular why 48 would be the correct size.
>
> Valgrind ignores the rounding mode:
>
> Valgrind, setting RC_DOWN:
> writer.c:364: Test failed: 2097: got 39 expected 22
> writer.c:366: Test failed: 2097: got <t>100000000000000.0156249999999999</t> expected <t>100000000000000</t>
>
> no Valgrind, not setting RC_DOWN:
> writer.c:364: Test failed: 2097: got 39 expected 22
> writer.c:366: Test failed: 2097: got <t>100000000000000.0312499999999999</t> expected <t>100000000000000</t>
>
> 32 characters will be needed at most (excluding XML tags) because the
> formatting code switches to exponential notation beyond 1^14 and precision
> is capped at 0.0000000000000001, or 16 digits.

Thanks for looking into this. Could you please resend a patch with the
correct size and an appropriate comment?

-- 
Alexandre Julliard
julliard at winehq.org