August 2013
Beginner
352 pages
8h 50m
English
Content preview from C Programming Absolute Beginner’s Guide, Third Edition
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32. Returning Data from Your Functions
This chapter isn’t the end of your C learning—it’s only the beginning. Sounds deep, doesn’t it? This chapter completes the multiple-function picture by showing you how to return values from the called function to the calling function. It also explains function prototypes.
The bottom line is this: You will now understand why most programs in this book contain this line:
return 0;
You also will understand the true purpose of header files.
Returning Values
So far, you’ve seen how to send variables to functions. You’re now ready to learn how to return a value. When a function is to return a value, use the return statement to return the value. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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