https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81506
Bug ID: 81506 Summary: Invalid declaration with decltype accepted Product: gcc Version: 8.0 Status: UNCONFIRMED Keywords: accepts-invalid Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reichelt at gcc dot gnu.org CC: paolo.carlini at oracle dot com Depends on: 51786 Target Milestone: --- The error message "declaration does not declare anything" is not triggered in certain cases when using decltype: =================================== template<int> struct A { A() { decltype(this); } }; A<0> a; =================================== It *is* triggered if I make A a non-template class. This is actually the second testcase from PR51786. While the first one was successfully fixed, the second testcase still doesn't work. Btw, clang produces a warning for this case. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51786 [Bug 51786] [c++0x] Invalid declaration with decltype accepted