Number of classes in a project

[John Dubchak]

No there is no limit.  Currently I have approximately
75 classes in a particular project.  The problem is in
whether or not you've defined the no args constructor
and destructor in the header file and provided their
definition in another translation unit - the .cpp
file.

I would assume that you have this scenario going on:

// rotate.h
class Rotate
{
 public:
   Rotate(); // no args constructor
   ~Rotate() // destructor

  ... // other stuff
};

// rotate.cpp
// you need these defined here now
// but I bet they aren't
Rotate::Rotate()
{
 ...
}

Rotate~Rotate()
{
}

Good luck and hope that helps,
John 

--- Phil <phil at spiderweb.com.au> wrote:
> Hello All,
> 
> I have developed a project that consists of 5
> classes which works as it 
> should. If I add an extra class then I end up with a
> very strange error.
> 
> This is a clip from the class that causes the error
> message:
> 
> #include "rotate.h"
> 
> Rotate rotate;
> rotate.setAngle();
> 
> This file compiles without any errors but I get the
> following error when I 
> attempt to run the application:
> 
> /home/phil/pesc/pesc/pesc.cpp:159: undefined
> reference to 
> `Rotate::Rotate(void)'
> /home/phil/pesc/pesc/pesc.cpp:159: undefined
> reference to 
> `Rotate::~Rotate(void)'
> 
> This error only occurs when a project has more than
> 5 classes and the rotate 
> class works correctly in a two-class project. Is
> there a limit to the number 
> of classes that a project can have?
> 
> I'm using Kdevelop 2.0.1 and KDE 2.2.1.
> 
> Any suggestions would be most appreciated.
> 
> -- 
> Regards,
> Phil
> phil at spiderweb.com.au
> 
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