Book Image

Learn C Programming - Second Edition

By : Jeff Szuhay
Book Image

Learn C Programming - Second Edition

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)
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 multiple if()… statements

The switch statement tests a single value. Could we have done this another way? Yes – with the if()… else if()… else if()… else… construct. We could have written the calc() function using multiple if()… else… statements, in this way:

double calc( double operand1 , double operand2 , char operator )  {
  double result = 0.0;
 
  printf( "%g %c %g = " , operand1 , operator , operand2 );
  if( operator == '+' )
      result = operand1 + operand2;
  else if( operator == '-' )
      result = operand1 - operand2;
  else if( operator == '*' )
      result = operand1 * operand2;
  else if( operator ==  '/'
      if( operand2...