Conventions used

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

Code in text: 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: “With that in mind, let’s take a look at our Adapter class, Humanoid.”

A block of code is set as follows:

class Humanoid: private Person   // Humanoid is abstract
{                           
protected:
    void SetTitle(const string &t) { ModifyTitle(t); }
public:
    Humanoid() = default;   
    Humanoid(const string &, const string &, 
             const string &, const string &);
    // class definition continues 

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

    const string &GetSecondaryName() const 
       { return GetFirstName(); }  
    const string &GetPrimaryName() const 
       { return GetLastName(); } 

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

Orkan Mork McConnell
Nanu nanu
Romulan Donatra Jarok
jolan'tru
Earthling Eve Xu
Hello
Earthling Eve Xu
Bonjour

Tips or important notes

Appear like this.