https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94159
Bug ID: 94159
Summary: parse error on a declaration of a dependent class
using a class-key instead of typename
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
The declaration of the q member below is rejected with a parse error,
suggesting GCC is confused about what's going on. Other compilers (all of
Clang, ICC, and VC++) accept both declarations without a complaint.
No version prior GCC version accepted the code so it's not a regression.
$ cat x.C && gcc -S -Wall -Wextra -Wpedantic x.C
template <class T>
struct A {
template <class U>
struct B { };
};
template <class T>
struct C
{
typename A<T>::template B<T> *p; // accepted
struct A<T>::template B<T> *q; // error
void f ()
{
struct A<T>::template B<T> *r = p; // accepted
}
};
x.C:11:30: error: expected identifier before ‘*’ token
11 | struct A<T>::template B<T> *q; // error
| ^
