https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Just lambdas as default is needed really, reduced testcase:
struct f
{
template<class T1>
f(const T1&){}
};
template<typename T> class A {
public:
void foo(A<T> a, const f& fn = [](){}) { }
void bar(A<T> a) { foo(a); }
};
int main() {
A<int> a;
a.foo(a);
a.bar(a);
return 0;
}
