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

Using explicit typing with initialization

A better format for a variable declaration is one where the variable is initialized or given a starting value when it is declared, such as type identifier1 = value1; , type identifier2 = value2;, or

type identifier1 = value1 , identifier2 = value2 , ... ;.

Here, value is a literal constant or an already-declared variable. Note that in the second form of variable declaration, each variable must have its own initializing value. These are often accidentally omitted. Therefore, the first form is preferred. Consider the following declarations with initialization:

#include <stdbool.h>   /* So we can use: bool, true, false */

int aNumber = 10;
long aBigNumber = 3211145;
long long aReallyBigNumber = 425632238789;
float inches = 33.0;
float feet = 2.5;
float yards = 1780;
double length = 1 , width = 2 , height = 10;
bool isItRaining = false...