what is the correct way to handle multiple input command differently in c++?

Question

I have a program that take commands from user and it will process different commands differently. For example:

ADD_STUDENT ALEX 5.11 175
ADD_TEACHER MERY 5.4         


        

Answer 1

Do it like so:

iss >> command;
if (!iss)
    cout << "error: can not read command\n";
else if (command == "ADD_STUDENT")  
    iss >> name >> height >> weight;
else if (command == "ADD_TEACHER")  
    iss >> name >> height >> weight >> salary;
else if ...