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   DIR Return to: OutPut of a Program
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       #Post#: 207--------------------------------------------------
       solve this problem...
       By: dinesh Date: November 26, 2012, 9:58 am
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       File A.h:
       #ifndef _A_h
       #define _A_h
       class A{
       public:
       A(int id);
       private:
       int _id;
       B _b; // HERE I GET A COMPILATION ERROR: B does not name
       a type
       };
       #endif
       File A.cpp:
       #include "A.h"
       #include "B.h"
       #include <cstdio>
       A::A(int id): _id(id), _b(){
       printf("hello\n the id is: %d\n", _id);
       }
       File B.h:
       #ifndef _B_h
       #define _B_h
       class B{
       public:
       B();
       };
       #endif
       File B.cpp:
       #include "B.h"
       #include <cstdio>
       B::B(){
       printf("this is hello from B\n");
       }
       I first compile the B class and then the A class, but then I get
       the error message:
       A.h:9: error: ‘B’ does not name a type
       How do I fix this problem?
       #Post#: 218--------------------------------------------------
       Re: solve this problem...
       By: ravusairam Date: November 27, 2012, 3:35 am
       ---------------------------------------------------------
       I think if we change the order  from
       #include "A.h"
       #include "B.h"
       to
       #include "B.h"
       #include "A.h"
       it will work because then the definition of B is available for
       the object in A.
       #Post#: 219--------------------------------------------------
       Re: solve this problem...
       By: kranthipls Date: November 27, 2012, 3:46 am
       ---------------------------------------------------------
       I think ravu is correct........
       #Post#: 221--------------------------------------------------
       Re: solve this problem...
       By: vsr Date: November 27, 2012, 4:42 am
       ---------------------------------------------------------
       something else also needs to be done...
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