Read dumb data into C++ heterogeneous data frame

mpg.cpp

#include <iostream>

#include "data_frame.h"
#include "read_csv.h"
#include "head.h"

using namespace R;

int main() {

	std::cout << "read dumb data into heterogeneous container\n\n";

	auto car_data = read_csv("mpg.csv");

	std::cout << head(car_data);

}