Re: [4.6 branch] Issue with C++ references.

[Jason Merrill <jason at redhat dot com>]

On 10/18/2011 09:57 AM, Yvan ROUX wrote:
> int main() {
>          const int Ci = 0;
>          const int&rCi = Ci;
>          if (!(&Ci ==&rCi)) return 1;
>          return 0;
> }
>
> The program has the expected behaviour if you use a 4.5 gcc or the trunk, but
> if you compile it with a 4.6 one (even with the branch's head) with -O0,
> the program returns the 1 value, because rCi is not bound to Ci, but to an
> anonymous temporary which cantains the value 0.

Eep!

> In fact only the part of the commit which removes the call to
> maybe_constant_value in cp_parser_initializer_clause fixes the bug.
> I'm not really sure of what I have to do in such a case :
> preparing the patch or asking to backport Jason's on the 4.6 branch ?

I'll backport that hunk, thanks for catching this.

Jason