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)
1
Section 1: C Fundamentals
10
Section 2: Complex Data Types
19
Section 3: Memory Manipulation
22
Section 4: Input and Output
28
Section 5: Building Blocks for Larger Programs

Introducing streams

In the simplest terms, a stream is a sequence of bytes transferred in one direction from its source to its target. We have already discussed the abstract concept of an execution stream, or the flow of compiled CPU instructions from memory to the CPU. An execution stream is created when we successfully compile our source code files into an executable file. It is initiated when the program is invoked from the command line and flows until the program stops.

In the console, the input stream transfers bytes—in this case, characters—from the keyboard to our program's memory. The console's output stream transfers characters from our program's memory to the screen. A console, therefore, consists of a keyboard source stream for input and a screen destination stream for output. We can think of it simply as a pair of input and output streams, also known as I/O streams.

The standard console is enhanced by two additional features...