https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115985
Bug ID: 115985
Summary: anoymous struct with base class rejected by gcc
Product: gcc
Version: 13.2.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rush102333 at gmail dot com
Target Milestone: ---
The following code is rejected by GCC but accepted by other compilers including
clang, MSVC and EDG:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
struct empty{
};
struct outer{
struct : public empty{ int x; };
};
int main(){
int res=outer().x;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C++ standard says little about anonymous struct, so I'm unsure which side is
correct.
https://godbolt.org/z/4aKfKvdzb
Note that the code can be accepted if the unnamed struct has an instantiation:
https://godbolt.org/z/M8q3raWW8
