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

[Hans Leidekker]

On Wed, 2016-12-14 at 11:50 +0100, Henri Verbeet wrote:
> On 14 December 2016 at 11:34, Hans Leidekker <hans at codeweavers.com> wrote:
> > I didn't debug this (and I don't feel like it to be honest) but there
> Ideally Austin would have, but fair enough.
> 
> > are loops in the formatting code which terminate depending on the
> > precision and rounding of long double operations. Valgrind can't match
> > the precision of hardware because it uses 64-bit numbers internally to
> > represent long doubles.
> >
> That makes some sense, although IIRC the FPU is by default in double
> precision mode as opposed to extended precision mode on Windows. (See
> also signal_init_thread() in ntdll.) Does that also imply a similar
> issue could happen if an application changed the FPU to single
> precision mode?

Yes. It would be interesting to see what webservices does on Windows in
that case. We already set and restore the rounding mode.