https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102300
Bug ID: 102300
Summary: Qualified name in class template
Product: gcc
Version: 11.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: huangqinjin at gmail dot com
Target Milestone: ---
template<typename T>
struct holder
{
template<typename F> struct fn {};
struct t1 : fn<T> {}; // pass
struct t2 : holder<T >::fn<T> {}; // fail
struct t3 : holder<T >::template fn<T> {}; // fail
struct t4 : holder<T*>::template fn<T> {}; // pass
};
The code compiles with GCC 10 but not GCC 11.
Output of x86-64 gcc 11.1 (Compiler #2)
<source>:7:35: error: expected class-name before '{' token
7 | struct t2 : holder<T >::fn<T> {}; // fail
| ^
<source>:8:44: error: expected class-name before '{' token
8 | struct t3 : holder<T >::template fn<T> {}; // fail
|
https://godbolt.org/z/qMav3YrYK
