[Bug 22020] Page Fault in wine_utf8_wcstombs when running ToonTalk

http://bugs.winehq.org/show_bug.cgi?id=22020

--- Comment #12 from Nikolay Sivov   2010-03-13 13:54:57 ---
(In reply to comment #10)
> As said, I'm by no means an expert but googling for 'loadXML' shows several
> examples with 'normal' strings. This could of course also mean that loadXML
> figures out whether it's passed a BSTR of WCHAR.

This most likely means that it doesn't use length stored if ptr-- position.
Actually I don't think we should use it either, cause it's safe to pass -1 to
WideCharToMultiByte cause BSTR are always null terminated. WideCharToMultiByte
needs a full string scan for both calls so I don't think we are going to have a
speed change after that.