[Boost-users] boost-users [program options, tuple]

14 Nov 2007

      Hi i would like to know how to make program options play nicely with tuple.
int main( int ac, char* av[] )
{
	namespace po = boost::program_options;
    po::options_description desc("Allowed options");
    std::vector<BigInteger> key_pair;
    desc.add_options()
		("generate", "generates a pair of key")
		("secert", po::value(&key_pair)->multitoken(), "creates the share
secret key");

	po::variables_map vm;
	po::store(po::parse_command_line(ac, av, desc), vm);
	po::notify(vm);

	try
	{
		if (vm.count("generate"))
		{
			BigInteger my_prime =
encryptcpw::random_prime<BigInteger>(&algocpw::Solovay_Stressen<BigInteger>,
16);
			std::cout << "my prime: " << my_prime << "\n";
			boost::tuple<BigInteger, BigInteger> pare(encryptcpw::dh_init<BigInteger>(
				 my_prime
			));
			std::cout << "pair of generated number: " << pare << "\n";
		}
		if (vm.count("secert"))
		{
			const BigInteger p(
encryptcpw::random_prime<BigInteger>(&algocpw::Solovay_Stressen<BigInteger>,
16));
			std::cout << encryptcpw::dh_secret<BigInteger>(
							 p,
							 key_pair[0],
							 key_pair[1]);

		}
	}
	catch (const char* error)
	{
		std::cerr << error << "\n";
	}
}

I would like to replace vector with tuple.
boost::tuple<BigInteger, BigInteger> key_pair;

for some reason doing that cause the program to crash.. when run
DiffieHellman --generate 1371 2397

[Boost-users] boost-users [program options, tuple]

chun ping wang