Homework2 Notes

• Failing to match the I/O specifications is an error.
• If you have questions about either, please contact me.

• Log into cslab103
• If your program name is hw2

• $ ~dbennett/230/hw2/runMasterTest ./hw2 

• This creates a directory called testdir in your current directory.
• It will also run a series of tests in this directory.
• If the tests are successful, you should see

• [bennett@localhost me]$ ~dbennett/230/hw2/runMasterTest ./hw2
  Running the default data test.
  If any output appears, your program has a problem.
  
  End of test.
  press enter to continue
  
  
  Running the negative integer test.
  If any output appears, your program has a problem.
  
  End of test.
  ...
           

• If your program has a problem the following will occur

• Running the foo test.
  If any output appears, your program has a problem.
  4c5
  < Max:  8 
  ---
  > max: 8
  
  End of test.
  

  • In this error report
    • < represents your output that is considered in error
    • > represents the output according to the standard.
  • In this case, the user printed an extra character between Max: and the output 8.
  • This will report errors for
    • Incorrect output
    • Missing output
    • Extra output
    • Extra white space, even at the end of a line.
    • Missing punctuation
    • Misspelled words.
• A common source of problems is with the prompt. My routine contains

  • cout << "Enter the name of the master file => ";
    cin >>  fileName;
    cout << endl; 

  • I will not take off points for the missing endl for this program.

• Don't build huge functions. 15 to 30 lines max.
• If you do not understand how to do something I want (like use the makefile) ASK.
• If you submitted a broken tar file, resubmit a correct one.
• If you don't work on the example data the standard says

  Programs must work on the example data.
      Programs that do not produce the correct output
      on the example data will not be eligible for a redo.  

• Please read the entire specification
  • You were to use long as the integer type.
  • Strings were defined to be the entire line.
• Please use good identifiers.
  • What should a function called ReadData do?

    void ReadData(ifstream  & inFile) { 
         string file, type;
         char command;
    
         inFile >> file >> type >> command;
         // should this be here given the name?
         ProcessComand(file, type, command);
         return;
    } 

  • What does the function OperX do?

long FindIntMin(ifstream & inFile) {
    long data;
    long min;
    inFile >> data;
    min = data;
    while (inFile) {
       if (min > data) {
          min = data;
       }
       inFile >> data;
    }
    return min;
}

long FindIntMax(ifstream & inFile) {
    long data;
    long max;
    inFile >> data;
    max = data;
    while (inFile) {
       if (max < data) {
          max = data;
       }
       inFile >> data;
    }
    return max;
}

void FindIntExtreme(ifstream & inFile, long & min, long & max) {
    long data;
    inFile >> data;

    min = data;
    max = data;

    while (inFile) {
       if (max < data) {
          max = data;
       }

       if (min > data) {
          min = data;
       }

       inFile >> data;
    }
    return;
}