C6 Functions and Pointers

C6 Functions and Pointers

1. The main function

   • exit

2. Use of void

   • stand-alone statements: functions that return void
     • statement

3. Scope

   • functions can only access local variable
   • side effects

4. Global Variable

   • declared outside of any function
     • can be accessed and modified from within any function
   • be shadowed by local variables of the same name

5. Static variables

6. pointers and pointer operations

7. Pointers as arguments