C++ Map::begin方法代码示例

void NetworkInterfaceTest::testMap()
{
	NetworkInterface::Map m = NetworkInterface::map(false, false);
	assert (!m.empty());
	for (NetworkInterface::Map::const_iterator it = m.begin(); it != m.end(); ++it)
	{
		std::cout << std::endl << "=============" << std::endl;

		std::cout << "Index:       " << it->second.index() << std::endl;
		std::cout << "Name:        " << it->second.name() << std::endl;
		std::cout << "DisplayName: " << it->second.displayName() << std::endl;
		std::cout << "Status: " << (it->second.isUp() ? "Up" : "Down") << std::endl;

		NetworkInterface::MACAddress mac(it->second.macAddress());
		if (!mac.empty() && (it->second.type() != NetworkInterface::NI_TYPE_SOFTWARE_LOOPBACK))
			std::cout << "MAC Address: (" << it->second.type() << ") " << mac << std::endl;

		typedef NetworkInterface::AddressList List;
		const List& ipList = it->second.addressList();
		List::const_iterator ipIt = ipList.begin();
		List::const_iterator ipEnd = ipList.end();
		for (int counter = 0; ipIt != ipEnd; ++ipIt, ++counter)
		{
			std::cout << std::endl << "----------" << std::endl;
			std::cout << "Address " << counter << std::endl;
			std::cout << "----------" << std::endl;
			std::cout << "Address:     " << ipIt->get<NetworkInterface::IP_ADDRESS>().toString() << std::endl;
			IPAddress addr = ipIt->get<NetworkInterface::SUBNET_MASK>();
			if (!addr.isWildcard()) std::cout << "Subnet:      " << addr.toString() << " (/" << addr.prefixLength() << ")" << std::endl;
			addr = ipIt->get<NetworkInterface::BROADCAST_ADDRESS>();
			if (!addr.isWildcard()) std::cout << "Broadcast:   " << addr.toString() << std::endl;
		}

		std::cout << "=============" << std::endl << std::endl;
	}
}

void NetworkInterfaceTest::testForAddress()
{
	NetworkInterface::Map map = NetworkInterface::map();
	for (NetworkInterface::Map::const_iterator it = map.begin(); it != map.end(); ++it)
	{
		// not all interfaces have IP configured
		if (it->second.addressList().empty()) continue;

		if (it->second.supportsIPv4())
		{
			NetworkInterface ifc = NetworkInterface::forAddress(it->second.firstAddress(IPAddress::IPv4));
			assert (ifc.firstAddress(IPAddress::IPv4) == it->second.firstAddress(IPAddress::IPv4));
		}
		else
		{
			try
			{
				it->second.firstAddress(IPAddress::IPv4);
				fail ("must throw");
			}
			catch (NotFoundException&) { }
		}
	}
}

int main(int argc, char** argv)
{

	if (argc != 1)
	{
		Path p(argv[0]);
		std::cerr << "usage: " << p.getBaseName() << std::endl;
		return 1;
	}

	try
	{
		const NetworkInterface::Map map = NetworkInterface::map();
		for ( NetworkInterface::Map::const_iterator it = map.begin();
		it != map.end(); ++it)
		{
			const NetworkInterface& intf = it->second;
			std::string sep("");
			std::cout << intf.name() << " [" << intf.index() << "]: ";
			std::cout << "<";
			if (intf.isUp())
			{
				std::cout << sep << "UP";
				sep = ",";
			}

			if (intf.isRunning())
			{
				std::cout << sep << "RUNNING";
				sep = ",";
			}

			if (intf.isLoopback())
			{
				std::cout << sep << "LOOPBACK";
				sep = ",";
			}

			if (intf.isPointToPoint())
			{
				std::cout << sep << "P2P";
				sep = ",";
			}
			
			if (intf.supportsIPv4())
			{
				std::cout << sep << "IPv4";
				sep = ",";
			}

			if (intf.supportsIPv6())
			{
				std::cout << sep << "IPv6";
				sep = ",";
			}

			if (intf.supportsBroadcast())
			{
				std::cout << sep << "BCAST";
				sep = ",";
			}

			if (intf.supportsMulticast())
			{
				std::cout << sep << "MCAST";
				sep = ",";
			}

			if (!intf.isLoopback())
			{
				std::cout << sep << std::dec << intf.mtu();
				sep = ",";
			}

			std::cout << ">" << std::endl;

			const NetworkInterface::AddressList& ipList = intf.addressList();

			NetworkInterface::AddressList::const_iterator ipIt = ipList.begin();
			NetworkInterface::AddressList::const_iterator ipEnd = ipList.end();
			for (; ipIt != ipEnd; ++ipIt)
			{
				std::cout << "  " << ipIt->get<NetworkInterface::IP_ADDRESS>().toString();
				IPAddress addr;
				addr = ipIt->get<NetworkInterface::SUBNET_MASK>();
				if (!addr.isWildcard()) std::cout << '/' << addr.toString() << " (" << addr.prefixLength() << ')';
				addr = ipIt->get<NetworkInterface::BROADCAST_ADDRESS>();
				if (!addr.isWildcard()) std::cout << (intf.isPointToPoint() ? "  dest  " : "  bcast  ") << addr.toString();
				std::cout << std::endl;
			}
			std::cout << std::endl;
		}
	}
	catch (Exception& exc)
	{
		std::cerr << exc.displayText() << std::endl;
		return 1;
	}
	
	return 0;
//.........这里部分代码省略.........