🚀 go-pugleaf

X-Original-Date: 14 Dec 1995 17:45:37 GMT

For those who are experts on C++, what is the syntax to
initialize a static member of a class while the member
is a pointer to a member function?  Here is an example:

class A {
public:
  // The intent is to to have stmemfun to be a static member
  // of A while the member is a pointer to a member function of A.
  // Is this declaration right?
  static int (A::*stmemfun)(int) const;

public:
  A(int inita) : aa(inita) {}
  int aa;
  int getaaplus(int b) const {return aa+b; }
  
  int help(int b) const { return (this ->* stmemfun)(b); }
};

// This would compile but stmemfun is a global not the static member of A
// int (A::*stmemfun)(int) const = &A::getaaplus;

// This does not compile on SGI C++ 4.0 with patch556
int A::((A::*stmemfun)(int) const) = &A::getaaplus;

void main() {
  A aA(5);
  // I want dd to be 14
  int dd = aA.help(9);
}

Jin Chou
--------
jchou@nas.nasa.gov


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