Book Image

Learn C Programming

By : Jeff Szuhay
Book Image

Learn C Programming

By: Jeff Szuhay

Overview of this book

C is a powerful general-purpose programming language that is excellent for beginners to learn. This book will introduce you to computer programming and software development using C. If you're an experienced developer, this book will help you to become familiar with the C programming language. This C programming book takes you through basic programming concepts and shows you how to implement them in C. Throughout the book, you'll create and run programs that make use of one or more C concepts, such as program structure with functions, data types, and conditional statements. You'll also see how to use looping and iteration, arrays, pointers, and strings. As you make progress, you'll cover code documentation, testing and validation methods, basic input/output, and how to write complete programs in C. By the end of the book, you'll have developed basic programming skills in C, that you can apply to other programming languages and will develop a solid foundation for you to advance as a programmer.
Table of Contents (33 chapters)
Section 1: C Fundamentals
Section 2: Complex Data Types
Section 3: Memory Manipulation
Section 4: Input and Output
Section 5: Building Blocks for Larger Programs

Creating header files

Header files are used for the following reasons:

  • Header files remove the clutter of function prototypes and the declaration of custom types from the source file. They are moved to a header file to be included in the source file.
  • For functions that are called from a different source file, the inclusion of the header file with those function prototypes provides access to those functions. Simply including the header file then makes them available within that program.
  • For custom data types that are used in other source files, the inclusion of the header file with those custom data-type declarations makes those custom types known within the other source files.

  • Header files provide a means to organize all of the C Standard Library header files, as well as our own header files, into a single header file. An example of this would be a source file that includes, say, stdio.h, stdlib...