Hello,
Some time back I had some trouble getting the GDK and X11 bindings
playing well together. Jürg helped out and I got the code to compile
and work properly, but being the pedant that I am, I'd like to get rid
of the warning from gcc altogether.
The code that Vala generates is:
real_xev = (XEvent*) (&(*xev));
The code that silences the GCC warning is:
real_xev = (XEvent *)xev;
So, what I am wondering is, should I report a bug against Vala? It
would seem that the expression "(&(*xev))" could be simplified to the
latter, and that simplification makes GCC happy, since the void* pointer
is no longer dereferenced and the pointer is properly cast to the
appropriate pointer type.
The line that triggers this code is:
unowned X.Event* real_xev = (X.Event*)(&xev);
In context, it is shown here:
http://bazaar.launchpad.net/~alltray-developers/alltray/trunk/annotate/head%3A/src/AttachHelper.vala
(it is line 65).
I have tried to write:
unowned X.Event* real_xev = (X.Event*)xev;
As well as:
unowned X.Event* real_xev = &((X.Event)xev);
... but Vala generates invalid code for each ("invalid use of void
expression", GCC says).
Any ideas?
--- Mike
--
Blog: http://mike.trausch.us/blog/
Misc. Software: http://mike.trausch.us/software/
“The greater danger for most of us lies not in setting our aim too
high and falling short; but in setting our aim too low, and achieving
our mark.” —Michelangelo
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