Lecture 4

Question 1

First 4 parts of code

Answer 1

1. Header/comment
2. # include<iostream></iostream>
3. Using namespace std;
4. int main()

Question 2

Preprocessor command

Answer 2

A command that the computer looks for and reads first. Starts with # and given to the compiler. Preprocess commands are commands to the compiler, so they don’t need ;.

Question 3

3 preprocessor code examples

Answer 3

Include: brings in code with other files into the program
Define: can modify code
Ifdef: short for if defined, can choose lines of code

Question 4

Namespace

Answer 4

A set of functions or commands in another file. Typically are downloaded with C++. If not included at the being of the program, needs to be written with two colons before each command.

Question 5

Meaning of int main()

Answer 5

Int shows it returns an integer (0 for no error and a number for an error), main denotes the part of code to start with, and parentheses show it is a function.

Question 6

Program requirements

Answer 6

The input, computations, and output needed.

Question 7

Case test

Answer 7

Points of the program that need to be tested and the desired output.

Question 8

Important points to test

Answer 8

Edge/boundary/corner cases (at a boundary), special case (errors that might be input or different than expected), normal case.