class not declared although it is declared

Asked Apr 08 '15 at 14:25

Active Apr 08 '15 at 14:41

Viewed 47 times

When I call the static method ClassA::it() in the method conn I get a compiler error.

#ifndef CLASSA
#define CLASSA

#include "ClassB.h"

namespace name {

class ClassA
{
public:
    static ClassA& it()
    {
        static ClassA c;
        return c;
    }

    [...]
};

}
#endif

#ifndef CLASSB
#define CLASSB

#include "ClassA.h"

namespace name {

class ClassB
{
public:
    static Handle conn()
    {
        return getHandle(ClassA::it().str());
    }
};

}

#endif

I get an compiler error which says that in the method conn() ClassA is not declared. How can I resolve this error?

edited Apr 08 '15 at 14:28

asked Apr 08 '15 at 14:25

user32323

The compiler has to parse one of those classes before the other one. It can't parse two classes simultaneously to resolve circular dependencies. – chris Apr 08 '15 at 14:28
Move the definition of `conn` out of the header. – molbdnilo Apr 08 '15 at 14:29
check out also http://stackoverflow.com/questions/625799/resolve-circular-dependencies-in-c – Peter Uhnak Apr 08 '15 at 14:30

class not declared although it is declared

0 Answers0