Chapter 8 Exercise Set 0: Chapter Review

1. Write function named lower_right that takes a Rectangle as an argument and returns a Point with the location of the lower right hand corner.

2. Write a function named find_area that takes a Rectangle as an argument and returns the area of the rectangle.

3. Use the sizeof operator you first met back in the Values section in chapter 2 to determine the size of a Rectangle.

4. Compile and run the following program:

   #include <iostream>
   using namespace std;
   
   struct A
   {
       char a;
       char b;
   };
   
   struct B
   {
       char a;
       double b;
   };
   
   struct C
   {
       A a;
       B b;
   };
   
   int main() {
       A a = {'a', 'A'};
       B b = {'B', 3.14};
       C c = {{'c', 'C'}, {'d', 4.9}};
       cout << "sizeof(a) is: " << sizeof(a) << endl;
       cout << "sizeof(b) is: " << sizeof(b) << endl;
       cout << "sizeof(c) is: " << sizeof(c) << endl;
       return 0;
   }
   

   Can you explain the results? Do some web research to see if you can understand what you see. Try additional experiments to test your understanding.

5. Write a function with a const parameter, and then modify it in the function body. Try compiling it and note what happens on your system.

A more efficient increment

6. Rewrite the increment function from the Modifiers section without iteration using the approach introduced in the Incremental development versus planning section.