[feisty2]

something I failed to understand

const int *pA = array + 2;

what's that "+2"? some kind of offset value? will it be affected if I change the structure of vector stream? like if I change "sad" in the vector to double?

and this,

pA += pA[0];

I suppose it should be something like

constexpr auto StreamHeaderOffset = 2;
auto pA = reinterpret_cast<const VectorStructure *>(array + StreamHeaderOffset);
auto MoveOnToTheNextVector = [](auto &VectorPointer) {
	constexpr auto AbsoluteVectorSize = sizeof(std::decay_t<decltype(*VectorPointer)>);
	constexpr auto RelativeVectorSize = AbsoluteVectorSize / sizeof(int);
	auto ForwardDistance = VectorPointer->x / RelativeVectorSize;
	VectorPointer += ForwardDistance;
};
MoveOnToTheNextVector(pA);

?

and that's why I hate C and old C++ so much cuz it's like fucking deciphering assembly code, what's so hard about defining weird constants with constexpr variables with proper names and writing some nested closure functions to tell others what the hell you're doing exactly?