The C Language 1/29/15. Quiz Take quiz 1 on Blackboard Over vim, linux, and Chapter 1.
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Transcript of The C Language 1/29/15. Quiz Take quiz 1 on Blackboard Over vim, linux, and Chapter 1.
The C Language
1/29/15
Quiz
• Take quiz 1 on Blackboard• Over vim, linux, and Chapter 1.
Assignment
On your own, answer the following questions. – p.17 #1– p. 31 #3
Edit, compile and execute this program. – p. 57 #3– submit jjarboe cs115 2
Read pp. 65-94 and Chapter 3 for next week.
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
main Function
Exactly one main() in a program Tells other functions when to execute
Calls them
int main() -- Function Header{ -- Body inside
{ } -- Executable Statements
}
Comments
/* Comment */
Ignored by compiler Documents program
Preprocessor Command
#include <stdio.h>
Inserts code at that point Inserts the code before the compile
Provides interface with printf and scanf functions
printf
Sends argument to monitor screen
printf(“Hello, Steve\n”);
Programming Style
What is wrong with style2.c? No Syntax Errors
Programming Style
Indentation Indent statements between { }
Comments Name, Date, Description of program
Meaningful identifiers “counties” instead of “x”
Questions
Give an example of a preprocessor
command.
What are two rules for good programming
style?
Next
Data Types and Arithmetic Operations