1. Objects with Functions and Arrays

2. Objects can be Passed Class defines type
Can use as type of function or parameter

3. Returning an Object To return object: Use function:
Make desired object
Return it
Use function:

4. Passing An Object
Passing object copies the object:
Main: c1
radius: 5

5. Passing An Object Passing object copies the object: Main: c radius: 5

6. Copies Generally Bad Copies Main: Are inefficient
Prevent functions from modifying an object
Main: c1
radius: 5

7. Copies Generally Bad Copies Main: Are inefficient
Prevent functions from modifying an object
Main: c
radius: 5 c1
radius: 5

8. Copies Generally Bad Copies Main: Are inefficient
Prevent functions from modifying an object
Main: c
radius: 10 c1
radius: 5

9. Copies Generally Bad Copies Main: Are inefficient
Prevent functions from modifying an object
Main: c1
radius: 5

10. Pass By Reference Unless you need copy, pass by reference Main: c1
radius: 5

11. Pass By Reference Unless you need copy, pass by reference Main: c c1
radius: 5

12. Pass By Reference Unless you need copy, pass by reference Main: c c1
radius: 10

13. Pass By Reference Unless you need copy, pass by reference Main: c1
radius: 10

14. Const Reference
To prevent function from modifying, use const reference:
Link back to original object
Make changing it a compile error

15. Arrays
Can have an array of objects
CircleList
radius: 2 1 2 3 4

16. Arrays Reference individual objects by index CircleList radius: 4
radius: 4 1
radius: 2 2 3 4

17. Arrays Arrays initialized with default constructor CircleList
radius: 2 1 2 3 4

18. Arrays
This makes 10 circles:

19. Arrays
This makes 10 circles:
CircleList
radius: 2 1 2 3 4

20. Arrays This makes 10 circles: CircleList radius: 1 radius: 2 1
radius: 1 1
radius: 2 2
radius: 3 3
radius: 4 4
radius: 5

21. Arrays
Use initialization list to prevent filling with default objects:
CircleList
radius: 1 1
radius: 2 2
radius: 3 3
radius: 4 4
radius: 5
Call 1-arg constructor to make anonymous object