The C Language 1/31/14

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

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. 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 Comments Meaningful identifiers 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?

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