[Solved] UDP receive method not compiling

[Guido_Ion]

I'm following the tutorial Communicating with sockets for SFML 3.0 and I get this compiler error on the receive method

"no instance of overloaded function matches the argument list"

this is part of my code

Code: [Select]

#define IP 191, 168, 1, 50
#define PORT 54000
...
    sf::UdpSocket socket;
    sf::IpAddress sender(IP); // I had to add the IP here because it gave me an error if I left it like in the tutorial

    std::uint16_t x;
    std::string s;
    double d;
    sf::Packet packet;
    packet >> x >> s >> d;

    ...

    if (socket.receive(packet, sender, PORT) != sf::Socket::Status::Done)
    {
        //  error
    }

It won't tell me which is the incorrect argument, maybe it's the sender that is now sf::optional?
Was the tutorial 3.0 for networking not updated from 2.5?

I have some years of experience in C++ and SFML but I'm new to networking.

[eXpl0it3r]

Looks like the tutorial wasn't properly updated.

You need to use a std::optional<sf::IpAddress> for the sender param.
See the example in the documentation: https://www.sfml-dev.org/documentation/3.0.1/classsf_1_1UdpSocket.html#details

[Guido_Ion]

That solved it, also the PORT was assumed int because I used #define, it should be an unsigned short so I created a variable, thanks!