Thread: Programming Puns

The boy is smoking and leaving smoke rings into the air.
The girl gets irritated with the smoke and says to her lover: "Can't you see the warning written on the cigarettes packet, smoking is injurious to health!"
The boy replies back: "Darling, I am a programmer. We don't worry about warnings, we only worry about errors."

Instruction to "Enforce In-Order Execution of I/O", known affectionately as E.I.E.I.O.

If you think C++ is not overly complicated, just what is a protected abstract virtual base pure virtual private destructor, and when was the last time you needed one?
/* A special reward goes to the first person who can actually answer this */

-Prelude

Bummer. Just my luck to know the answer <grin> and I get logged out (see above)

a protected abstract virtual base pure virtual private destructor is a function that:
can only be called by members or friends of that class, and
has no definition in the base class that declares it, but will be defined later in a derived class,
that (refering to the derived class) shares the multiply inherited base,
which (refering to the base class) is inherited in a protected way.

C'mon then, where's my prize??

>C'mon then, where's my prize??
You don't get a prize when you cheat
Though I very much like your taste in books, you could have at least tried putting the answer in your own words.

So...when was the last time you used a protected abstract virtual base pure virtual private destructor ?

-Prelude

I learned something about that from STYC++ in 21 Days.........Haven't really used because I am just starting out........might use it some day though.

Ok, Ok,

Though I very much like your taste in books, you could have at least tried putting the answer in your own words.

Worse than that I'm afraid......Google search / Cut & paste <hangs head in shame>

So...when was the last time you used a protected abstract virtual base pure virtual private destructor ?

Wouldn't know one if it bit me on the leg

(edit) For my penitance(sp) I'll do some research today and post an explanation tonight. That's my real problem - I can usually grasp concepts quite easily, it's sitting down and really coding I have problems with!

protected abstract virtual base pure virtual private destructor

Destructor - Code called when an object goes out of scope

Private - Can only be called by a member or friend of the class

Pure virtual - A function that contains no code, and can only be used to inherit new classes from. You cannot create objects from a pure virtual function.

So far.....

A pure virtual private destructor is a destructor defined in a class derived from the pure virtual function that can only be called by a member or friend function of the class.

(How'm I doing??)

Virtual Abstract base class - one that contains only pure virtual functions - i.e. at this time we don't know what the object will be, only it's template (ex. vehicle may be an abstract base class 'cos we could use it to create a car, or a bike etc).

Protected - It's implementation is hidden (encapsulated) from us - we can't see the code, we can only derive from it.

So a protected abstract virtual base pure virtual private destructor is a destructor that has to be derived from an implementation-hidden template class and can only be called by a member or friend of the derived class.

Still haven't got the foggiest when I would need to use it, but I would hazard a guess that I don't need to because one will be automatically created for me if I don't specifically implement one.

<PHEW>

Now do I get my reward???

>How'm I doing??
Considerably better

>Still haven't got the foggiest when I would need to use it
Neither do I, and I've been working with C++ for years.

>Now do I get my reward???
Okay, I was kind of sneaky with that reward concept. You see, I knew that just about everyone ( with the exception of Sorensen perhaps ) had no idea what it was or when it was needed. If someone wanted to answer correctly then they'd have to do quite a bit of research. Your reward is the knowledge you gained while trying to figure it out

p.s. Expert C Programming is still a very good investment if you can find it. Too bad it's out of print.

-Prelude

Tell you what. Lend me your copy, promise I'll let you have it back real soon

>Lend me your copy, promise I'll let you have it back real soon
I don't lend out my good books, especially the ones that are really hard to find, but I can let you have C by Example if you need a foot rest or something.

-Prelude