main.cpp

// #include <cstdlib>
#include <iostream>
#include <boost/regex.hpp>

using namespace std;
using namespace boost;

int main(int argc, char *argv[]) {
	string str = "2";
	regex re("[0-9]");
	try{
		re.assign(str, boost::regex_constants::icase);
	}
	catch(boost::regex_error e){
		cout << e.what() << endl;
	}
	try{
		if (boost::regex_match(str, re)){ // O erro no link aparece aqui...
			cout << "Encontrado..." << endl;
	}
	else
		cout << "Nn Encontrado..." << endl;
	}
	catch(boost::regex_error e){
		cout << e.what() << endl;
	}

	// system("pause");
	return EXIT_SUCCESS;
}