Discussion Outline - # 8

Week of 10/27 - 10/30

1. General Questions
   • Questions on Midterm - General questions only !!!
     DO NOT GIVE ANSWERS FOR ANY OF THE MASTER QUESTIONS !!!
   • The midterm is on Tuesday.
2. Random Numbers
   • Using rand() from stdlib
   • Seeding the random number generator with srand()
     • Same seed produces same set of numbers - great for debugging
     • Seed using time() also from stdlib to guarantee a new seed each time.
3. Global variables
   • Explain scope of variables
   • Globals have file scope
   • Explain the HAZARDS of globals
   • Do a trace to show how messed up things can get
   • USE OF GLOBALS IS NOT ALLOWED IN ANY 201 PROJECT