https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68300
Bug ID: 68300
Summary: Bogus -Wnon-virtual-dtor warning with protected base
class constructor
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
Target Milestone: ---
markus@x4 ~ % cat non_virt.ii
class A {
protected:
~A();
public:
friend struct C;
virtual void foo();
};
class B final : public A {
void foo() override;
};
markus@x4 ~ % clang++ -Wnon-virtual-dtor -c -std=c++14 non_virt.ii
markus@x4 ~ % g++ -Wnon-virtual-dtor -c -std=c++14 non_virt.ii
non_virt.ii:1:7: warning: ‘class A’ has virtual functions and accessible
non-virtual destructor [-Wnon-virtual-dtor]
class A {
^
non_virt.ii:10:7: warning: base class ‘class A’ has accessible non-virtual
destructor [-Wnon-virtual-dtor]
class B final : public A {
^
The warning goes away if I comment out the friend declaration.
