The Unofficial C For Dummies Website

This page supports the C programming books written by Dan Gookin and published by John Wiley, as well as the C language training courses offered online at LinkedIn Learning.

Recent Lessons

Fun with the asprintf() Function: January 11, 2020 A smart function, asprintf() both allocates and sizes a buffer into which formatted output is stored.
The snprintf() Function: January 4, 2020 The sprintf() can lead to buffer overflow, which is why the non-standard snprintf() function was developed.
My own strlcat() Function: December 28, 2019 Writing my own strlcat() function proved easier once I figured out how the non-standard library function behaved.
Decoding the strlcat() Function: December 21, 2019 The strlcat() function's return values must be deciphered before I attempt to code my own version.
My Own strlcpy() Function: December 14, 2019 Crafting my own strlcpy function was easier after I studied the original function and ran tests on its operation.

Lessons are posted each Saturday; see the blog for all the Lessons

This Month's Exercise

Remove Trailing Blank Lines: January 1, 2020 Most text files end with a blank line. One is enough! When a text file terminates with several blank lines, you can write a utility to remove the excess.

Exercises are posted on the first of the month; see the blog for all the Exercises

Current Titles

For support on my older C titles, click: C All-In-One reference and C For Dummies.

Online Training

Online training is provided through Linkedin Learning, a subscription service. Click here to see my available courses; new online training is available frequently.

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"For Dummies" is a trademark or registered trademark of John Wiley.
This site is the online companion to the various
C language For Dummies titles written by Dan Gookin,
published by John Wiley.