Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!elroy!orion.cf.uci.edu!uci-ics!siam.ics.uci.edu!schmidt
From: schmidt@siam.ics.uci.edu (Doug Schmidt)
Newsgroups: comp.lang.c++
Subject: Making operators ``new'' and ``delete'' private.
Keywords: new, delete
Message-ID: <7581@paris.ics.uci.edu>
Date: 16 Feb 89 00:03:43 GMT
Sender: news@paris.ics.uci.edu
Reply-To: Doug Schmidt <schmidt@siam.ics.uci.edu>
Distribution: comp
Organization: University of California at Irvine: ICS Dept.
Lines: 38

Hi,

   I would appreciate it if a C++ language lawyer would explain
whether the following program is valid C++ as defined by the most
recent version of cfront (i.e., 2.0).  In particular, is it possible
to prevent use of ``new'' and ``delete'' outside of the context of
class member scope?

   Also, is it valid for the ``delete'' operator to declare the ``X*''
parameter, or must it use ``void *?''
        
----------------------------------------
class X
{
public:
  X (int) { ; }

private:
  void *operator new (long sz) { printf ("hello\n"); }
  void operator delete (X* p) { printf ("goodbye\n"); }
};

main ()
{
  X* a = new X(1); // Is this incorrect use of private new?
  delete a;        // Is this incorrect use of private delete?
}
----------------------------------------


Thanks for your help.

Doug Schmidt
--
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