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

Accessing dynamic memory

Once we've allocated dynamic memory, we can access it via the pointer that's returned by the allocation functions, as we would with any other pointer. With each of the previous examples, we could use that dynamic memory as follows:

InitializeCard( pCard1 , spade , ace , kNotWild );
InitializeCard( pCard2 , heart , queen , kNotWild );

pCard1 and pCard2 are pointers to individual Card structures. Therefore, we can use them just like we used the pointers in carddeck.c using automatic variables.

However, consider the following:

pHand1[3].suit = diamond;
pHand1[3].face = two;

for( int i = 0 ; i < kCardsInHand , i++ ) {
PrintCard( &(pHand[i]) );

Both pHand1 and pHand2 point to a contiguous block of memory that is equivalent to the size of five Card structures. Using array notation, we set the suit and face structure members of the fourth element via pHand1. The PrintCard() function takes a pointer to...