The Unofficial C For Dummies Website

This page supports the C programming books written by Dan Gookin and published by John Wiley.

Recent Lessons

Don't be a Stranger to the Locale: March 23, 2019 The locale settings can help your code run in more locations than your hometown.
Fetching the Search Path: March 16, 2019 Here's a handy utility that displays directories specified by the operating system in which to find executable (program) files.
Building a Format String: March 9, 2019 The first argument of the printf() function can be a variable, but only when you craft it carefully.
A Curious Thing About Array Notation: March 2, 2019 Prepare to completely lose focus on what you thought was array notation.
Exit Status Defined Constants: February 23, 2019 If you want to be fancy, you can use a defined constant instead of zero or some other number as the main() function's return value.

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

This Month's Exercise

Find the Duplicates: March 1, 2019 Given an array of random values, report which numbers are repeated.

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, including the C All-In-One reference and C For Dummies, click the links on the left side of the page.

Online Training

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C Essential Training: 1 The Basics

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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.