pointer and iterator

[mickey]

Hi, could anyone explain me why the two line are ok?

std::vector<Side>* _sides;
	std::vector<Side>::iterator its;	
	int temp;
	for (its = _sides->begin(); its != _sides->end(); ++its)
		temp += (*its).getSide(); //1
		temp += its->getSide();  //2

std::vector<Side>* _sides;
	std::vector<Side>::iterator its;	
	int temp;
	for (its = _sides->begin(); its != _sides->end(); ++its)
		temp += (*its).getSide(); //1
		temp += its->getSide();  //2

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Could explain me what scenario we have in term of pointers (refering to its. eg: in the loop its pointer to.........)

Thank you.