int _tmain(int argc, _TCHAR* argv[])
{
	string email1S = "abc 31432";
	cmatch results;
	regex mcn("([[:digit:]]+)");
	string::const_iterator curPosition = email1S.begin();

	if (regex_search(curPosition, email1S.cend(), results, mcn))
	{
		cout << "We have a match" << endl;
		cout << results[1].str() << endl;
	}
	curPosition += results[0].length();
	cin.get();
	return 0;
}