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Learn C Programming

Learn C Programming - Second Edition

By : Jeff Szuhay
4.7 (6)
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Learn C Programming

Learn C Programming

4.7 (6)
By: Jeff Szuhay

Overview of this book

The foundation for many modern programming languages such as C++, C#, JavaScript, and Go, C is widely used as a system programming language as well as for embedded systems and high-performance computing. With this book, you'll be able to get up to speed with C in no time. The book takes you through basic programming concepts and shows you how to implement them in the C programming language. Throughout the book, you’ll create and run programs that demonstrate essential C concepts, such as program structure with functions, control structures such as loops and conditional statements, and complex data structures. As you make progress, you’ll get to grips with in-code documentation, testing, and validation methods. This new edition expands upon the use of enumerations, arrays, and additional C features, and provides two working programs based on the code used in the book. What's more, this book uses the method of intentional failure, where you'll develop a working program and then purposely break it to see what happens, thereby learning how to recognize possible mistakes when they happen. By the end of this C programming book, you’ll have developed basic programming skills in C that can be easily applied to other programming languages and have gained a solid foundation for you to build on as a programmer.
Table of Contents (38 chapters)
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1
Part 1: C Fundamentals
10
Part 2: Complex Data Types
19
Part 3: Memory Manipulation
22
Part 4: Input and Output
28
Part 5: Building Blocks for Larger Programs

Introducing variables

variable is a location in memory that holds a value of a specified type that can vary over the life of the variable, identified by its name. When the variable is defined with both a type and an identifier, its life begins. It can hold the same value throughout its life, or it can be modified or overwritten with a new value of that type. The variable's life ends – that is, the memory it identifies is deallocated – when the block that it was declared in ends. We'll talk more about variable lifetimes in Chapter 25Understanding Scope.

So, a variable is a memory location with an identifier (name) associated with a type that contains a value. The following three components are essential: 

  • A unique identifier or name
  • A type
  • A value

A variable is created by declaring it; this is also called defining a variable. When we declare a variable, we specify the data type to be stored...

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Learn C Programming
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