// Check for proper data input format, and ranges
void Xclass::errMacGyver(int sku, int qty, double price, int menu, int CASE) {
	auto caZe= &CASE;
	if (cin.fail()) {
		cleanCin();
		return;
	}

	if((*caZe)==0 && cin.good()) {
		if(sku<0 || qty<0 || price<0) *caZe=1; //Negative
		if((sku>0 && sku<10000000) || (price>0 && price<0.5)) *caZe=2;	//Too Small
		if(qty>99 || sku>99999999 || price>20000) *caZe=3;	//Too Large
		switchBlade(*caZe);
	} else if ((*caZe)!=0 && (*caZe)!=111 ) switchBlade(*caZe); //directly invoke error message
	else if((menu<1 || menu>6) && (*caZe)==111) switchBlade(*caZe); //menu choice
};