Re: Quick question!

Thanks David for your input!

Thankyou to all!

Later!

Best regards
Roberto


"David Wilkinson" <no-reply@xxxxxxxxxxxx> wrote in message
news:%23$WTtcwgGHA.2208@xxxxxxxxxxxxxxxxxxxxxxx
Robby wrote:

Hey David!

You did it again! :-)

*IT COMPILES WITHOUT ANY ARRORS*


So, I will try this new "Forward declaration" stuff you just tought me
with all the rest of my other pointers to objects that I want to pass to
this function. I know that Abdo mentioned it in his post as:

2. Use forward-reference *before* the #include of SFC_1.h

however this is new to me and I didn't know how to apply the syntax?
However thankyou also Abdo!

One thing though, If I do use:

class components; // forward declaration

in my SFC1.h file, what happens to all the other objects that derive from
it.... are they automatically declared also, or must I do this for all
the others too?

And David, one last question............ As a few posts back you talked
about me using the stack instead of using new which would otherwise make
me look like a Java programmer :) remember? Well.... while we are on the
subject, one of my buddies has an IT company and he says that everyone is
going on JAVA and that C++/VC++ will eventually not be very popular
anymore! This discouraged me, but I know that I must take his opinion
lightly since he is no major beer in the IT world. Anyways, I and I am
sure of it for many others, put alot of time in a language like C... what
is your opinion on the future existance of C++ and VC++?


[snip]

Robby:

When you forward declare, for example

class components; // forward declaration

you are just telling the compiler that there is a class called components.
If the compiler needs to recognize the names of other classes derived from
components, then you must forward declare those also.

A good rule to follow with headers is: Every header should compile by
itself (i.e. when included in an empty .cpp file). Forward declaration is
often sufficient to achieve this.

Just my opinion, but I would say that today .NET is a much greater threat
to traditional C/C++ than Java.

David Wilkinson






.

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