1. The C Language
1/31/14

2. Quiz
Take quiz 1 on Blackboard
Over vim, linux, and Chapter 1.

3. Assignment On your own, answer the following questions. p.17 #1
Edit, compile and execute this program.
p. 57 #3
submit jjarboe cs115 2
Read pp and Chapter 3 for next week.

4. C is a Functional Language
Example program
ch2/retail.c
Existing functions serve as basis for new functions.
printf and library function used to create main

5. main Function Exactly one main() in a program
Tells other functions when to execute
Calls them
int main() -- Function Header
{ Body inside { }
-- Executable Statements }

6. Comments
/* Comment */
Ignored by compiler
Documents program

7. Preprocessor Command #include <stdio.h>
Inserts code at that point
Inserts the code before the compile
Provides interface with printf and scanf functions

8. printf
Sends argument to monitor screen
printf(“Hello, Steve\n”);

9. Programming Style
What is wrong with style2.c?
No Syntax Errors

10. Programming Style Indentation Comments Meaningful identifiers
Indent statements between { }
Comments
Name, Date, Description of program
Meaningful identifiers
“counties” instead of “x”

11. Questions Give an example of a preprocessor command.
What are two rules for good programming style?

12. Next
Data Types and Arithmetic Operations