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 (37 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

A few simple examples

These examples are very, very simple and are meant to give you a feel for using Bstrlib. The examples provided on the SourceForge website are quite advanced string handling examples. They are extremely useful and well worth studying.

Our first bstrlib example will be the Hello, world! program, as follows:

#include <stdio.h>
#include "bstrlib.h"
int main( void ) {
bstring b = bfromcstr ("Hello, World!");
puts( (char*)b->data );
}

This program, bstr_hello.c, creates bstring from a C string and then prints it using puts(). To compile this program, be sure that the bstrlib.h and bstrlib.c files are in the same directory as this program. Then, enter the following command:

cc bstrlib.c bstr_hello.c -o bstr_hello -Wall -Werror -std=c18.

In our next example, we will split a string into multiple strings based on a delimiter and then print them. We can do this with the C standard library, but it is rather complicated...