Topic: Calling through pointers to member functions


Author: Timothy Madden <batman@rmv.spam.home.ro>
Date: Wed, 29 Dec 2004 00:06:31 +0000 (UTC)
Raw View
[cross-posted]

Hi

If I have a pointer to one of my member functions, and the pointer is also a
member, in the same class, should 'this->' not be used implicitly in the
class scope to call the pointed function ?

Something like this:

class MbxAddress
{
protected:
 void LocateAnyMbx()
  {
  }

void LocateUserMbx()
  {
  }

public:
void (MbxAddress::*LocateMbx)();
    MbxAddress(bool fManagers = true)
  {
    if (fManagers)
       LocateMbx = &MbxAddress::LocateAnyMbx;
    else
       LocateMbx = &MbxAddress::LocateUserMbx;
    LocateMbx();
   }
};

Here the last call 'LocateMbx()' should work without explicitly writing
       (this->*LocateMbx)();
because 'this->' is implicit in class scope and
dereferencing the function pointer to call the referred function is also
implicit
anyway.

Of course in total there should be two uses of 'this->' here:
  - one for the pointer itself since it is a member
  - one for the refered function since it must be applied on an object to be
called

I think it would be natural for both uses to be implicit here.
Please, anyone wants to comment on this ?

Timothy Madden
Romania



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Author: Timothy Madden <batman@rmv.spam.home.ro>
Date: Tue, 28 Dec 2004 22:03:10 GMT
Raw View
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Author: Timothy Madden <batman@rmv.spam.home.ro>
Date: Wed, 29 Dec 2004 01:27:14 GMT
Raw View
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Author: Timothy Madden <batman@rmv.spam.home.ro>
Date: Wed, 29 Dec 2004 02:15:20 GMT
Raw View
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