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

Internal static storage

When a variable is declared within a function block with the static keyword, that variable is accessible only from within that function block when the function is called. The initial value of the static value is assigned at compile time and is not re-evaluated at runtime. Therefore, the value assigned to the static variable must be known at compile time and cannot be an expression or variable.

Consider the following program:

#include <stdio.h>

void printHeading( const char* aHeading );

int main( void ) {
printHeading( "Title Page" );
printHeading( "Chapter 1 " );
printHeading( "" );
printHeading( "" );
printHeading( "Chapter 2 " );
printHeading( "" );
printHeading( "Conclusion" );
}

void printHeading( const char* aHeading ) {
static int pageNo = 1;
printf( "%s \t\t\t Page %d\n" , aHeading , pageNo);
pageNo++;
}

The printHeading()function contains the...