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

The time_t Value . . . and 16 Hours?: February 27, 2021 For some puzzling reason, my computer generates a time_t value that appears to be off by 16 hours.
Creating a time_t Value: February 20, 2021 The time() function creates a time_t value for you, though if you're crazy enough the operation can be done manually.
Parsing Integer Values Into a time_t Value: February 13, 2021 The final step in parsing the filename string is to convert the year, month, and day integer values into a time_t "Unix epoch" value.
Parsing and Converting: February 6, 2021 Data from a filename string must be parsed into individual year, month, and day integers.
It's Parsing Time: January 30, 2021 From string to time_t value, it's a journey.

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

This Month's Exercise

Positive, Negative, or Zero: March 1, 2021 The C language lacks a function that returns the sign of an integer. So why not write one yourself?

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: Beginning C Programming, 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.