use class inside another class

[zsteve]

Hi,
I am having this problem : I want to include an object within another class, like this :

<apple.h>
class apple{
...
};

<pear.h>
class pear{
 apple appleobject; // <-- including another class.
}

any help on how to do this? since I can't include apple.h in pear.h and stuff like that...
thanks

[Peter87]

From the code you have posted I don't see why you can't include apple.h in pear.h.

[Rechard3]

i spotted a little problem, you're enclosing the headers you made with angel brackets.
you use angle brackets to specify standard library headers.
your own made headers should be placed in double quotations, maybe this is your problem.

try using:
#include "apple.h"
and
#include "pear.h"

[seven50]

don't forget some include guards when writing your headers.

[zsteve]

hi, I think i should have clarified my question a bit more.
example of the kind of problem I'm having:
--- this is from main.cpp ---

#include "pear.h"
... 

--- this is from sub.cpp ---

#include "pear.h"
...

--- this is from pear.h ---

#include "apple.h"
class pear
{
   apple apple_object_in_pear;
};

--- this is from apple.h ---

class apple { ... };

the problem is when I include pear.h in both sub.cpp and main.cpp - everything in apple.h gets redefined and i get an error.
For variables I could work around this by using extern but I don't know how i can do it for classes

[zsteve]

actually, never mind, include header guards worked\

[Rechard3]

zsteve wrote:

hi, I think i should have clarified my question a bit more.

you're correct, didn't really clarify your question, i thought you actually implemented include guards in your program before posting this.

anyway, i'm glad your project works.