[Bug c++/81527] Missing inherited constructor by "using-declarations"

["tuwwcn at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81527

--- Comment #2 from Wei-Wei Tu <tuwwcn at gmail dot com> ---
> The above code is REJECTED by GCC 6.2.0 too.
==> Sorry for the mistake, The above code is ACCEPTED by GCC 6.2.0 too.

(In reply to Wei-Wei Tu from comment #1)
> Some additional information:
> 
> The above code is REJECTED by GCC 6.2.0 too.
> 
> But the below code is PASSED by GCC 6.1.0, 6.3.0, 6.4.0, 7.1.0. The only
> difference is explicitly casting p's type to its own type.
> 
> /////////////////////////////////////////////
> #include <utility>
> 
> struct A : public std::pair< int, int> {
>     using std::pair<int, int>::pair;
> };
> 
> int main() {
>     std::pair<int, int> p{1, 2}; 
>     A a(std::pair<int, int>(p));
> }
> ///////////////////////////////////////////