Multiplicity&collections .cpp example

multiplicity_and_collection.cpp

#include <string>	// for string :: iterator
#include <fstream>	// for file stuff
#include <cstdlib>	// for atoi
#include <vector>	// for vectors
#include <cstring>	// for c_str
#include <iostream>	// for cout/in

using namespace std;

class myclass 
{
public:
	int from;
	char on;
	int to;
	myclass(){}
	myclass(string from, string on, string to)
	{
		this->from = atoi( from.c_str() );
		this->on = on[0];
		this->to = atoi( to.c_str() );
	}
	friend ostream& operator<< (ostream &out, myclass &s);
};

int main(int argc, char const *argv[])
{	
	myclass m("2", "a", "2");

	vector<myclass> states;

	states.push_back( m );
	cout << m << endl;

	return 0;
}

ostream& operator<< (ostream &out,  myclass &s)
{
	out << s.from << " " << s.on << " " << s.to << endl;
	return out;
}