[Bug c++/89906] [8 Regression] template template parameter redeclared

[doko at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89906

Matthias Klose <doko at debian dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |doko at debian dot org

--- Comment #1 from Matthias Klose <doko at debian dot org> ---
from PR89928:

$ cat main.ii
template <template <typename> class> struct a;
template <template <typename> class T1> struct b { a<T1> c; };
template <template <typename T1, typename T2, typename T3> class F> struct d;
template <template <typename P1, typename P2, typename P3> class F> struct d;

$ g++ -std=c++17 main.ii
main.ii:3:66: error: template parameter 'template<class T1, class T2, class T3>
class F'
 template <template <typename T1, typename T2, typename T3> class F> struct d;
                                                                  ^
main.ii:4:76: error: redeclared here as 'template<class P1, class P2, class P3>
class F'
 template <template <typename P1, typename P2, typename P3> class F> struct d;
                                                                            ^

works on the trunk.