https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69205
--- Comment #4 from mohsen <mohsen.tamiz at gmail dot com> --- This bug tagged rejects-valid, although, Andrew Pinski has told that he did not know variadic templates well. After that I do not know I must wait still to get a certain answer about that or it really accepted and it will be fixed in the future versions. This bug is a part of my code so I must be sure that whether it is true or not. I were waiting for more comments about that but it seems an unactive bug.
