Discussion Outline- # 7

10/20 - 10/23

1. General Questions
   • Questions on Project 2
   • Questions on Midterm - General Questions only !!!
     DO NOT GIVE ANSWERS FOR ANY OF THE MASTER QUESTIONS !!!
2. Tracing Code
   • Example with variables of the same name in main and in the functions
3. Top-Down Design OR Stepwise Refinement
4. Separate Compilation
   • The 3 typical files - discuss the theory of it
     • The foo.h file contains prototypes, constants and can be used as the interface for users
     • The foo.c file that contains the function definitions, usually supplied to users in object code form (not source code form)
     • The foobar.c file that contains main, an application that uses the functions in foo.c
   • Discuss the mechanics of separate compilation
     • Both foo.c and foobar.c need foo.h #included
     • Need to compile foo.c with the -c option to produce the .o file
     • cc201 foobar.c foo.o