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From: soychangoman@gmail.com
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Subject: Defining a binary operator between function access types: Is it
	possible?
Date: Thu, 16 Oct 2008 06:34:30 -0700 (PDT)
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Date: 2008-10-16T06:34:30-07:00
List-Id: <comp.lang.ada>

I'm trying to define a binary operator between function access types
that returns the access to the function that is the binary operator
acting on both functions. Let's put it a bit clearer:

-----------
procedure operating_on_access is

  type function_access is access function ( x : Real) return Real;

  function "+" (f1 : function_access; f2 : function_access) return
function_access is
  begin
     -- The question is what to put here
  return null;
  end "+"

  funcion square (x : Real) return Real is
  begin
      return x**2;
  end square;

  funcion cubic (x : Real) return Real is
  begin
      return x**3;
  end square;

  f1_acc,   f2_acc,   f3_acc : function_access;

begin

  f1_acc :=3D square'Access;
  f2_acc :=3D cubic'Access;

  -- f3_acc :=3D f1_acc + f2_acc;
-- the idea is that ' f3_acc.all ( x )  ' and ' square (x) + cubic(x)
' are equivalent

end operating_on_access;
-----

Thanks in advance

Mat=EDas Niklison