On Sat, 13 Oct 2018 at 13:01, Luca Bacci <luca.bacci982@xxxxxxxxx> wrote:
>
> Hi, I think I've hit a bug in g++ that has already been resolved recently,
> because it works ok on current g++, but still I encounter it on older
> supported distributions and in GitLab CI tests.
>
> typedef int int_alias;
>
> class A
> {
> public:
> operator int();
> operator int_alias() const;
> };
>
> A::operator int() {
> return 0;
> }
>
> A::operator int_alias() const {
> return 1;
> }
>
>
> When I copmpile it with older g++ I get the error:
> error: prototype for ‘A::operator int_alias() const’ does not match any in
> class ‘A’
> error: candidates are: A::operator int()
> error: A::operator int_alias() const
>
> In reality, I am using Gtkmm3. and in my class I have user defined
> conversion to Gtk::TreeModel::iterator and Gtk::TreeModel::const_iterator.
> In Gtkmm3 Gtk::TreeModel::const_iterator is not a real different type, it
> is just a typedef to Gtk::TreeModel::iterator. In Gtkmm4 const_iterator has
> become a different type.
>
> Can someone point me to the bug report for this? It would be great to add
> this as reference in the commit message. Thank you very much.
It was fixed by commit https://gcc.gnu.org/r251340 which doesn't
reference any bug report.
