how can i get error from __attribute__((weak))?
i can't test, now,
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#if defined __GNUC__
#define EVENT [[gnu::weak]]
#elif defined __clang__
#define EVENT [[llvm::weak]]
#elif defined _MSC_VER
#define EVENT __attribute__ ((weak))
#endif
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because, on VS, i get a problem with pointers:
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template <typename CBase>
class test
{
CBase* atPointer = nullptr;
public:
test(CBase *clsPointer) : atPointer(clsPointer)
{
//if (IS_EVENT_DEFINED(&CBase::MouseClick))
atPointer->MouseClick();
//if (IS_EVENT_DEFINED(&CBase::Move))
atPointer->Move();
}
void call()
{
//if (IS_EVENT_DEFINED(&CBase::MouseClick))
atPointer->MouseClick();
//if (IS_EVENT_DEFINED(&CBase::Move))
atPointer->Move();
}
};
class InstanceName : public test<InstanceName>
{
public:
InstanceName() : test(this) { ; }
~InstanceName() { ; }
public:
void MouseClick();
void Move();
};
void InstanceName::MouseClick()
{
std::cout << "Mouse click\n";
}
void InstanceName::Move()
{
std::cout << "Move\n";
}
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why i don't get the pointer correctly?
(the functions 'MouseClick()' aren't called)
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