#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <locale>
#include <stdexcept>  //for runtime_error
using namespace std;

void print();

int main()
{
	const locale save = cout.getloc();   //save cout's locale

	print();

	try {
		cout.imbue(locale("fr_CA"));
	}
	catch (const runtime_error& e) {
		cerr << e.what() << "\n";
	}

	print();
	cout.imbue(save);                    //return to saved locale
	print();
	return EXIT_SUCCESS;
}

void print()
{
	cout << "Locale \"" << cout.getloc().name() << "\":\n"
		<< "integer: " << 123456789 << "\n"
		<< "double:  " << fixed << setprecision(3) << 123456789.123
		<< "\n\n";
}