[PATCH] Fix write to uninitialized bytes for XCB event

[Scott Kostyshak]

On Wed, Feb 19, 2020 at 07:22:36PM +0100, Pavel Sanda wrote:
> On Wed, Feb 19, 2020 at 06:28:51PM +0100, Enrico Forestieri wrote:
> > Uh? In the Requirements section I read:
> > 
> >   First of all, you will need a C++11 standard conforming compiler, like gcc
> >   (at least 4.7) or clang.
> 
> My undesrtanding was that only 4.8 is C++11 complete, especially wrt alignment support:
> https://gcc.gnu.org/gcc-4.7/cxx0x_status.html
> 
> > I could not find the macro you mention in the current Qt sources (5.14.1),
> > but I found the following in src/plugins/platforms/xcb/xcbconnection.h
> > 
> > template <typename T>
> > struct alignas(32) q_padded_xcb_event : T { };
> > 
> > which is then used as
> > 	q_padded_xcb_event<xcb_selection_notify_event_t> event = {};
> 
> Indeed, and now I know why:
> 
> https://github.com/qt/qtbase/commit/41705529d9995291324e1d06d45861ce63b1c72e#diff-5ee6702ad3813956cbebf9e7be8859d8
> 
> So we are at your solution anyway :)

Should I revert then? Or Enrico do you want to just commit your solution
on top of what I committed?

Scott
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