11/21/05  CISC181

(1) cin.ignore()

Why you might need cin.ignore()
  (see why.you.need.cin.ignore.cc)

How to use cin.ignore
  (see cin.ignore.example.cc )

How to avoid needing to use cin.ignore()

  If you use cin.getline anywhere in your program,
  use it EVERYWHERE.

  If you need to read a single character, then read
  into a great big character array, and pull out element [0].

  char option;
  char greatBigArray[1024];
  cin.getline(greatBigArray, 1024);
  option = greatBigArray[0];

  instead of:

  char option;
  cin >> option;

  Similarly, for 

  int x;
  cin >> x;

  Use:

  int x;
  char greatBigArray[1024];
  cin.getline(greatBigArray, 1024);
  x = atoi(greatBigArray);

  similar for double, except instead of atoi, use atof
  (there is no atod except in wrong answers to multiple choice)

  The following do exist, and you can use "man" to learn about
  them:


  strtod
  strtoul
  
  
(2) Continuing with our readAttendanceFile example

Today's first topic:

Finishing up in readAttendanceFile.cc with the sorting
example, showing how to sort an array of structs.



(3) Classes