WeakPtr() [3/6]

template<typename T>

template<typename U>

fl::WeakPtr< T >::WeakPtr ( const Ptr< U > & ptr )

inline

Definition at line 146 of file ptr_impl.h.

                                            : mWeakPtr(nullptr) {
    if (ptr) {
        mWeakPtr = ptr->getWeakPtr();
        if (!mWeakPtr) {
            // No weak reference exists yet, create one
            WeakReferent* weakRef = new WeakReferent();
            ptr->setWeakPtr(weakRef);
            weakRef->setReferent(ptr.get());
            mWeakPtr = weakRef;
        }
        if (mWeakPtr) {
            mWeakPtr->ref();
        }
    }
}

References fl::Ptr< T >::get(), mWeakPtr, and fl::WeakReferent::setReferent().

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