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

Order of execution

When a program executes, it first finds main() and begins executing statements in the main() function block. Whenever a function call statement is encountered, a number of actions occur:

  1. If there are function parameters, the actual values found in the function call statement are assigned to the function parameter names.
  2. Program execution jumps to that function and begins executing statements in that function block.
  1. Execution continues until either a return statement is encountered or the end of the block is encountered (the closing }).
  2. Execution jumps back, or returns, to the calling function and resumes from that point.

If, in step 2, execution encounters another function call statement, the steps are repeated.

The following diagram illustrates the call/return order of execution when function calls are encountered. This order of execution cannot be violated. Since...