Final Exam CSCI 130 Fall 2013

Please answer each question fully, carefully and thoughtfully.
No credit will be given for unreadable answers, please write neatly.
Answer the questions in any order, but please number each answer.
Make sure that your name is on your test.

Functions
1. [10 points] Give the outline of a program which includes a function. Include examples of, and clearly label each of the following.
  - Function Prototype
  - Function call (invocation)
  - Function definition
  - Parameter List
  - Arguments.
2. [3 points] Describe the properties an argument and parameter must have in common.
3. [6 points] Name and describe the two kinds of parameters. When should a programmer employ each kind of parameter?
Scope/Lifetime
1. [1 points] Define the scope of an identifier.
2. [2 points] Describe the scope rules for C++.
3. [2 points] What is a global variable and why should programmers avoid employing global variables?
4. [1 points] What is the lifetime of a variable?
[3 points] What is functional cohesion?
Employing Functions
1. [3 points] Why is repeated code a problem in a program?
2. [2 points] How can programmers solve the problem of repeated code?
[3 points] Write a function which takes an integer between 0 and 9 and returns the English name of that integer. For example, if the input is 5, the output should be "five".
[4 points] Write a void function which takes a string and reverses the order of the characters in that string. For example, the string "Hello World!" would become "!dlroW olleH"
[5 points] Write function which takes a string and returns true if the string is a perfect palindrome. A perfect palindrome reads the same in each direction, "able was I ere I saw elba" is a perfect palindrome, but "Race caR" is not. You may use the function from the previous question as part of your solution.
[5 points] Write a program which reads a series of phrases from the file "sayings.dat". Each phrase occupies a single line. For each phrase, your program should print out "Perfect Palindrome" if the phrase is a perfect palindrome. You may use the code from the previous questions to solve this problem.