YARP code that reads the hello world string from ROS publisher

hello_world_reader.cpp

// -*- mode:C++; tab-width:4; c-basic-offset:4; indent-tabs-mode:nil -*-

#include <stdio.h>
#include <yarp/os/all.h>
using namespace yarp::os;
int main(int argc, char *argv[]) {
    Network yarp;
    //Node node("/yarp/hello_world_listener");
    BufferedPort<Bottle> port;
    port.setReadOnly();
    if (!port.open("/topic_name@/dds")) {
        fprintf(stderr,"Failed to open port\n");
        return 1;
    }
    while (true) {
        Bottle *msg = port.read();
        if (msg==NULL) {
            fprintf(stderr,"Failed to read msg\n");
            continue;
        }
        printf("Got [%s]\n", msg->get(0).asString().c_str());
    }
  
    return 0;
}