derived class objects in base class static function

[Chris Forone]

hello group,

is it possible to use derived class objects in base class static function?

example:

#include <iostream>

class b;

class a
{
public:
a() {}
virtual ~a() {}

static void Init() {b thing; thing.Do();} // compile
// error
};

class b : public a
{
public:
b() {}
virtual ~b() {}

void Do() {std::cout << "hello?" << std::endl;}
};

int main()
{
a::Init();
}

thanx & hand, chris

 

[Ian Collins]

hello group,

is it possible to use derived class objects in base class static function?

example:

#include <iostream>

class b;

class a
{
public:
a() {}
virtual ~a() {}

static void Init() {b thing; thing.Do();} // compile
// error

Declare the function here, define it after class b.

 

[Chris Forone]

Declare the function here, define it after class b.

thanx, the example works. the original code is with headers &
implementation separated and therefor not as simple...

 

[Chris Forone]

thanx, the example works. the original code is with headers &
implementation separated and therefor not as simple...

ok, done! ive put the #include of derived class directly after #include
of base class in base class implementation. dont know if this is best
solution... thanx a lot, chris