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

Representing numbers with decimals

Not everything in the world is a whole number. For that, we have numbers with fractions or decimal numbers. Decimal numbers are used most naturally for measuring things.

A real number is of the following form:

significand x 10exponent

Here, both the significand and the exponent are signed integers. The size of each depends upon the number of bytes for a given real number type. There are no unsigned components. This provides a very large range of numbers, from positive to negative as well as very small fractional values:

Type # of Bytes
float 4
double 8
long double ...