// Lecture : Introduction to C++ - Namespaces
// OCSALY                 IDE : CLion

#include <iostream>

//namespace utilities{
//
//    bool poll_data(){
//        // example code #1
//    }
//    int get_data(){
//        // example code #2
//    }
//
//}
namespace myProfessionalUtilites{
    //declaring the functions
    bool poll_data();

    int get_data();


    //defining the functions
    bool myProfessionalUtilites::poll_data() {
        //code that return a bool from this func
    }
    int myProfessionalUtilites::get_data() {
        // code that return an integer in this func
    }
    inline namespace  V1{
        bool poll_data();
        int get_data();
    }

    namespace V2{
        bool poll_data();

        int get_data();
        int new_feature(); // our new Version 2 Program
    }
}

int main() {

    if (myProfessionalUtilites::V1::poll_data()) {
        int i = myProfessionalUtilites::V1::get_data();
        // we will use i variable here
    }
    myProfessionalUtilites::V2::poll_data(); // new Version of our namespace
    myProfessionalUtilites::V1::poll_data();
    myProfessionalUtilites::V2::get_data();

    return 0;
}