https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77711
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-09-23 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- If the function is overloaded we get a different, equally unhelpful error: struct A { int foo(); int foo() const; }; void bar(int); int main() { A a; bar( a.foo ); } foo.cc: In function ‘int main()’: foo.cc:11:14: error: cannot resolve overloaded function ‘foo’ based on conversion to type ‘int’ bar( a.foo ); ^ It's irrelevant that we can't resolve which overload to use, once name lookup finds that 'foo' is a function then a.foo is not a valid expression under any circumstances. This should also suggest a.foo()