🚀 go-pugleaf

The following code fragment is taken from a larger file which compiles
and runs correctly under cfront.  Under g++ 2.2.2 compilation, I get

ptest.c:22: parse error before `)'
ptest.c:22: `generic' declared as function returning a function
ptest.c:23: parse error before `::'
ptest.c:23: parse error before `)'
ptest.c: In method `double  B::A12 (double)':
ptest.c:28: warning: implicit declaration of function `generic'

Here's the code:
---------------
// -*- C++ -*-

class A {

public:
  double F1(double x);
  double F2(double x);
  double F3(double x);
  double F4(double x);
};

class B {
  
protected:
  A* a;
  
public:
  
  B() {a = new A;}
  ~B() {delete a;}
  
  double generic(double (A::*)(double Qsq), 
		 double (A::*)(double Qsq), 
		 double x);
  
  double A12(double x)
    {
      return generic(&A::F1, &A::F2, x);
    }
  
  double A34(double x)
    {
      return generic(&A::F3, &A::F4, x);
    }
  
};

Is there a way around this?  Am I doing something wrong?

Brad Keister
Department of Physics
Carnegie Mellon University
Pittsburgh, PA 15213
(412) 268-2772 (office)
(412) 681-0648 (FAX)

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