What is UDP socket programming in C++?

What is UDP socket programming in C++?

UDP socket programming in C++ involves using the User Datagram Protocol to send and receive data over a network.

How do I create a UDP socket in C++?

You can create a UDP socket using the socket() function with the SOCK_DGRAM type.

Can you show me a simple example of sending a UDP packet?

Sure! Here's a basic example:

#include <iostream>
#include <cstring>
#include <sys/socket.h>
#include <arpa/inet.h>

int main() {
    int sock;
    struct sockaddr_in server;
    sock = socket(AF_INET, SOCK_DGRAM, 0);
    server.sin_family = AF_INET;
    server.sin_port = htons(8888);
    server.sin_addr.s_addr = inet_addr("127.0.0.1");
    const char *message = "Hello, UDP!";
    sendto(sock, message, strlen(message), 0, (struct sockaddr *)&server, sizeof(server));
    close(sock);
    return 0;
}

This code creates a UDP socket and sends a message to a server.

What are the advantages of using UDP over TCP?

UDP is faster and has lower latency than TCP because it doesn't establish a connection or guarantee delivery.