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Stupid class problem

Started by VanKurt Oct 11, 2005 at 9:26 AM 2 replies 300+ views

Original Post

Oct 11, 2005 at 9:26 AM

Hi there! I'm having a little problem bothering quite some time ;-) Look at this: class ClassA { public: ClassB myB; }; class ClassB { public: ClassA myA; }; This code won't work because ClassB isn't defined when ClassA gets compiled... is there a way to ceate somekind of "prototypes" for classes? Thank's a lot!

SiCrane

Mod

473

SiCrane

Oct 11, 2005 at 9:31 AM

Assuming this is C++, you can't recursively store variables by value like that; it would require infinite size for each of the classes. You can store pointers, and if you use pointers you can create forward declarations for the classes. ex:

class ClassB;class ClassA {  public:    ClassB * myB;};

dimebolt

Oct 11, 2005 at 9:32 AM

class ClassB;class ClassA{public:	ClassB *myB;};class ClassB{public:	ClassA myA;};

You will have to use pointers, but it will work like this.

Tom

EDIT: D'oh :)

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