#include <iostream>
#include <iomanip>  //for the i/o manipulator setprecision
#include <cstdlib>
#include <cmath>    //for the pow function
#include <limits>   //for class numeric_limits
using namespace std;

int main()
{
	const size_t bytes {sizeof (int)};
	const size_t bits {8 * bytes};

	cout << "An int occupies " << bytes << " bytes, or " << bits
	     <<	" bits on this machine.\n"
	     << "That means that an int can hold one of "
	     << fixed << setprecision(0) << pow(2, bits)
	     << " different values.\n"
	     << "These values range from " << numeric_limits<int>::min()
	     << " to " << numeric_limits<int>::max() << " inclusive.\n\n";

	cout << "An unsigned int occupies the same number of bytes as an int.\n"
	     << "That means that an unsigned int can hold one of "
	     << fixed << setprecision(0) << pow(2, bits)
	     << " different values.\n"
	     << "But these values range from "
	     << numeric_limits<unsigned int>::min()
	     << " to " << numeric_limits<unsigned int>::max()
	     << " inclusive.\n";

	return EXIT_SUCCESS;
}