Unresolved External Error when using static member variables... help?

[nexius]

Hi.

I want to construct a class with static member variables and static member functions but the compiler keeps giving me "Unresolved External Error"'s!

I know that when you declare a variable as static outside a class it is only accessible within the file it was declared in... and this would give the UE errors, but not in a class... so why then?

Please help. Thanks in advance.

 

[Temps]

When you declare a static member variable in a class, you also have to allocate storage for it as follows:

class Foo
{
private:

static int i;

};

int Foo::i;

The fact that you haven't allocated storage will give the 'Unresolved External' error.

Temps

 

[nexius]

Alright great, thanks, that helps alot.

However, now I've got another problem. I can't include the class in other files without getting more linking errors.

It says that all my static variables and functions are already declared in another *.obj file...

error LNK2005...

I don't know how else to do it.

Thanks again.

 

[JOLESEN]

put the
int Foo::i;

in a .cpp file.
/JOlesen

 

[nexius]

Yes. Thank you!