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

Revisiting the console output with printf() and fprintf()

The function prototype for printf() and fprintf() are as follows:

int  prinft(                const char* format , ... );
int fprintf( FILE* stream , const char* format , ... );

Spaces have been added to emphasize the common parts of each function. We can see the console output with printf(), as follows:

int myAge = 1;
printf( "Hello, World! I am %d today!\n" , myAge );

This is, in fact, a shorthand form of the fprintf() function using stdout for the file stream parameter, as follows:

int myAge = 1;
fprintf( stdout , "Hello, World! I am %d today!\n" , myAge );

If you are so inclined, you could replace every printf( … ) statement in every program we have seen so far with its equivalent form, fprintf( stdout , … ), and all the programs would execute exactly as before. But please don't bother doing this; we have better things to do!