Conventions used

There are a number of text conventions used throughout this book.

CodeInText:Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles.Here is an example:"As a hint, this pairing involves the lines int main() and return 0;"

A block of code is set as follows:

#include <stdio.h>

int main()
{
    printf( "Hello, world!\n" );
    return 0;
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

#include <stdio.h>

int main()
{
    printf( "Hello, world!\n" );
    return 0;
}

Any command-line input or output is written as follows:

          $ cc hello6.c
        

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "This program is useful because it prints something out to the Terminal, also known as the console."

Warnings or important notes appear like this.

Tips and tricks appear like this.