Re: Incomplete Type on Pass By Value bug in g++ <4.3.0

[Joe Buck <Joe dot Buck at synopsys dot COM>]

On Fri, Feb 13, 2009 at 08:53:34AM -0800, Anthony Newnam wrote:
> I asked on gcc-help, but it seems like this list may be more
> appropriate as it deals with the gcc source.
> 
> I have noticed that in my g++ <4.3.0, I am able to compile the
> following code without any errors:
> struct A;
> void foo(A);
> void bar(A* p){foo(*p);}
> 
> In g++ 4.3.0 this seems to have been fixed, but I'm having a very hard
> time locating the fix for it. I was hoping that someone could point me
> in a general direction and hopefully even a changeset. I would like to
> be able to backport this to g++ 4.1.2 if possible.

It's possible that no one can answer you because this was fixed as a 
side effect of fixing a different problem.

You might have to resort to a binary search through the subversion
database to find the fix.  There's a script in the contrib area of
the gcc sources called reg_search that can help to automate the
process.  The endpoints for your search would be the point where
the 4.2 branch was created, and the point where the 4.3 branch was
created, since the fix must have gone into the trunk sometime between
those two points.