#include <boost/regex.hpp>

int main()
{
	boost::regex RegexInvalid;
	std::cout << "RegexInvalid.status(): \"" << RegexInvalid.status() << "\"\n";
	std::cout << "RegexInvalid.begin(): \"" << (void*)RegexInvalid.begin()
		<< "\"\n";
	boost::regex RegexValid("a\\([0-9]\\+\\)b");
	std::cout << "RegexValid.status(): \"" << RegexValid.status() << "\"\n";
	std::cout << "RegexValid.begin(): \"" << (void*)RegexValid.begin() << "\"\n";
	return 0;
}