C Tutorials

The C Preprocessor

The Function Pointer Tutorials

GCC-Inline-Assembly-HOWTO

https://www.eskimo.com/~scs/cclass/cclass.html – C Programming course held at the University of Washington in Seattle, WA.

C programming

CodingUnit Programming Tutorials: C Tutorials

Programmieren in C

The C Book – This is the online version of The C Book, second edition by Mike Banahan, Declan Brady and Mark Doran, originally published by Addison Wesley in 1991 (PDF version).

Programming in C - UNIX System Calls and Subroutines using C

www.utf8everywhere.org – UTF-8 Everywhere

C-Programmierung unter Linux