https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10541
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to work| |5.3.0, 6.3.0, 7.0
Resolution|--- |FIXED
--- Comment #13 from Martin Sebor <msebor at gcc dot gnu.org> ---
I believe this now works correctly. In C++ 11 mode and beyond the test case
from comment #6 is accepted and in C++ 98 mode it's rejected with the error
below. Resolving as fixed.
$ cat t.C && gcc -S -Wall -Wextra -Wpedantic -std=c++98 t.C
template <char *> class T {};
T<static_cast<char *>(0)> t;
t.C:2:28: error: a cast to a type other than an integral or enumeration type
cannot appear in a constant-expression
T<static_cast<char *>(0)> t;
^
t.C:2:29: error: template argument 1 is invalid
T<static_cast<char *>(0)> t;
^
