Question

Example of input:

I 67 85 49

R 4

D 4

G 65 97

/end input.txt

So I’m sure this is a elementary programming question but i’ve been playing with code and tried looking it up in books. But I need a way to keep reading in numbers after the I because theoretically the numbers could be endless. Now the D,G,R I can just code it to read in one number for D and R and two for G because that will never change.

By the way, I stands for Insert, R for Rank, D for delete, and G for Range. It’s a program on BSTs. Got most of my code done except for parts of my main and little things here and there.

I was thinking of a while() loop in my switch to do this feat, but I’m pretty I’ll have to change up my coding a bit inside the while loop.

I got it working so it reads in the operations perfectly.

Thanks for any suggestions!

Code:

inFile >> oper;     //prime the while loop

while(!inFile.eof())
{
    switch(oper)
        {
            case 'I':   while(//something to stop at /n)
                            {
                                    inFile >> value;      //tests to see if it
                        outFile << value; //is working correctly
                                    MainInsert(value);
                            }
                        break;
            case 'D':   
                        break;
            case 'R':   
                        break;
            case 'G':   
                        break;
            case 'F':   
                        break;
            case 'S':   
                        break;
            default:    outFile << "\n Invalid Operation!" << endl;
                        exit (0);
        }

    inFile >> oper;
}

Answer 1

case 'I':
{
    std::string str;
    std::getline(inFile, str);
    std::istringstream iss(str);
    iss >> value;
    while(iss)
    {
        outFile << value;
        MainInsert(value);
        iss >> value;
    }
    break;
}