Learn C The Hard Way
by Zed A. Shaw
Publisher: LCodeTHW 2011
A clear and direct introduction to modern C programming. The purpose of this book is to get you strong enough in C that you'll be able to write your own software in it, or modify someone else's code. The text is not for beginners, but for people who have at least read Learn Python The Hard Way or know one other programming language.
Home page url
Download or read it online for free here:
by Richard M. Stallman - Free Software Foundation
The definitive reference manual for the most widely used compiler in the world, written by its current developers. The GNU Compiler Collection is a full-featured ANSI C compiler with support for C, C++, Objective C, Java and Fortran.
by Sandra Loosemore, at al. - Free Software Foundation, Inc.
The GNU C library, described in this document, defines all of the library functions that are specified by the ISO C standard, as well as additional features specific to POSIX. This manual tells you how to use the facilities of the GNU library.
by Ciaran O'Riordan
The book teaches GNU users how to write software in C. It is written as a tutorial for beginners but should be thorough enough to be used as a reference by experience programmers. The basics are layed down in full in the first few chapters.
by Jens Gustedt - ICube
The book introduces you to the very basics of programming with C, details most principal concepts and features such as control structures, data types, operators and functions, fully explains pointers, performance, reentrancy, atomicity, threads, etc.