Hello,
I have 2 classes A and N, and I want an association between them.

Here is the code :
Qt Code: 
  1. #include "a.h"
  2. #include "n.h"
  3. int main()
  4. {
  5.     A* a=new A();
  6. 	N* n=new N(a);
  7. 	A->setN(n);
  8. }
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Qt Code: 
  1. #ifndef A_H
  2. #define A_H
  3.  
  4. #include "n.h"
  5.  
  6. class A{
  7.  
  8. 	N* _n;
  9.  
  10. public :
  11. 	A(){}
  12. 	void setN(N* n){_n=n;
  13. 	}
  14.  
  15. };
  16. #endif
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Qt Code: 
  1. #ifndef N_H
  2. #define N_H
  3.  
  4.  
  5. #include "a.h"
  6. class N{
  7.  
  8. 	A* _a;
  9.  
  10. public :
  11. 	N(A* a):_a(a){} <--- syntax error*: ')'
  12.  
  13.  
  14.  
  15. };
  16. #endif
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I have a problem at the compilation ...