This is a small part of main.cpp: 
int main(int argc, char *argv[]){
    int playerNum = atoi(argv[1]);
    int courtSize = atoi(argv[2]);
    int refereePresent = atoi(argv[3]);
    
    vector<pthread_t> allThreads;
    try {
        court = new Court(courtSize, refereePresent);   
    } catch (const std::exception& e) {
        // Catch all exceptions derived from std::exception
        printf("Exception caught:  %sn", e.what());
        return 0;
    }

It takes args and makes an instance from Court class. The header file containing the Court class needs to throw exception whenever there is not enough arguments (both). How do I check whether they are absent, it does not return 0 or anything. Empty constructor also does not work.