gencpp/test/CURSED_TYPEDEF.h

#include <functional>

class MyClass;

enum class MyEnum : short { VAL1, VAL2 };

struct OuterStruct {
    union NamedUnion {
        struct InnerStruct {
            double d;
            char c;
        } inner;
        int i;
    } unionInstance;
};

template<typename T, int N = alignof(double)>
struct TemplateStruct {
    T member[N];
};

template<>
struct TemplateStruct<int, 10> {
    int specialMember[10];
};

typedef decltype(nullptr) (MyClass::*InsaneComplexTypeDef)(
    decltype((MyEnum::VAL1 == MyEnum::VAL2) ? 1 : 2.0)
        (TemplateStruct<decltype(OuterStruct().unionInstance.inner), 5>::*ptr)[5][alignof(double)],
    std::function<void *(TemplateStruct<int, 10>&&,
        void (MyClass::*memFnPtr)(TemplateStruct<decltype(OuterStruct().unionInstance.inner)>))>,
    int (MyClass::*&refToMemFnPtr)(TemplateStruct<int, 10>),
    int (TemplateStruct<int, 10>::*memberPointer)[10],
    char&&...
) volatile const && noexcept;