#include <vector>
#include <iostream>
 
struct dataStruct
{
	dataStruct() : mID(0), mX(0.0f) {} // default to value 0
 
	dataStruct(int mID, float mX) : mID(mID), mX(mX) {}
 
	int mID;
	float mX;
};
 
int main(int argc, char** argv)
{	
	std::vector<dataStruct> myData(10); // create 10 objects with values 0
 
	myData[4].mID = 10;
 
	std::cout <<  myData[4].mID << " " << myData[5].mID << std::endl;
 
	// now resize to 100 objects, with 0 values for any new objects
	myData.resize(100);
 
	std::cout <<  myData[4].mID << " " << myData[99].mID << std::endl;
}

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