https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65291
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Do you really need to attach a tarball with four separate files to demonstrate
this?! It just makes it a pain to inspect the code.
Here's the complete source:
class A {
public:
A(int a = 0) { }
};
class B : public A {
public:
B(int b1, int b2) : A(b1) {}
protected:
using A::A;
};
class C : public B {
C() : B() {}
};
int main() {
B b(1,2);
C c;
}
The C++ standard says that B inherits a constructor taking a single int, the
default argument is not inherited, so B has no default constructor, and G++ is
correct to reject the program.
