Midterm Exam, CSCI 330, Fall 2017

• Make sure you answer each question completely and thoughtfully.
• Please make sure your answers are clearly labeled with the question number.
• Please write neatly and make any diagrams as neat as you can. If I can't read it, it is wrong.
• Point values are listed by each question.

1. [10 points] Draw a diagram that represents the compilation of a multi-file program. Label the parts. Draw a rectangle around all processes and an oval around all files. Please include the following items (items may be used multiple times):

   compiler	executable	linker	object code
   preprocessor	source code	system header file	system library
   temporary source code		user header file

2. Namespaces
   1. [3 points] Give the code required to declare the function prototype: void PrintWonder(WonderT w); in a namespace called GameDebugging.
   2. [2 points] Give the code required to call the function defined in the previous question. Assume that no using statement has been executed.
   3. [5 points] Why should using namespace std; be avoided in header files?

3. [5 points] Compare and contrast a standard array in C and a C++ STL array class array.

4. References
   1. [2 points] What happens when a reference variable is assigned the first time?
   2. [2 points] What happens on subsequent assignments to a reference variable?
   3. [6 points] Draw a diagram that represents the memory and contents of memory after the following code is executed.

      int x = 5;
      int & y = x;
      y = 7;
      

5. [5 points] A class which allocates dynamic memory should provide a copy constructor. What problems can occur is a copy constructor is not supplied?

6. Given the following code

   int x = 0;
   try {
       x++;
       AFunctionCall();
       x++;
   } 
   catch (int y) {
       x+=y
   }
   

   Assume that no other catch statements are executed and that somewhere in the call sequence starting at AFunctionCall the statement throw 10; is executed.
   1. [6 points] Describe the flow of control for the above code.
   2. [2 points] What is the value of x when the above code is executed?
   3. [2 points] What would be the result if the call sequence executed the statement throw 1.0; instead of throw 10;?