#include <iostream>
#include <iomanip>
#include <cstdlib>
using namespace std;

int main()
{
	ios_base::fmtflags save = cout.flags();

	cout << hex
		<< "cout.flags() == " << save << "\n"
		<< "ios_base::dec == " << ios_base::dec << "\n"
		<< "ios_base::hex == " << ios_base::hex << "\n"
		<< "ios_base::oct == " << ios_base::oct << "\n"
		<< "ios_base::basefield == " << ios_base::basefield << "\n";

	if (cout.flags() & ios_base::hex) {
		cout << "The hex flag is set.\n";
	}

	ios_base::fmtflags myflags = ios_base::dec | ios_base::hex;

	//Turn on myflags; turn off all others.
	cout.flags(myflags);

	//Outside of the basefield, leave all flags unchanged.
	//Within the basefield, turn on myflags and turn off the others.
	cout.setf(myflags, ios_base::basefield);

	//Turn on myflags; leave the others unchanged.
	cout.setf(myflags);

	//Turn on myflags; leave the others unchanged.
	cout << setiosflags(myflags);

	//Turn off myflags; leave the others unchanged.
	cout.unsetf(myflags);

	//Turn off myflags; leave the others unchanged.
	cout << resetiosflags(myflags);

	cout.flags(save); //restore all the format flags, not just 3 base flags
	return EXIT_SUCCESS;
}