include/AD/memory/uniqobj.h

   1 //////////////////////////////////////////////////////////////////////////////
   2 // NOTICE:
   3 //
   4 // ADLib, Prop and their related set of tools and documentation are in the
   5 // public domain.   The author(s) of this software reserve no copyrights on
   6 // the source code and any code generated using the tools.  You are encouraged
   7 // to use ADLib and Prop to develop software, in both academic and commercial
   8 // settings, and are welcomed to incorporate any part of ADLib and Prop into
   9 // your programs.
  10 //
  11 // Although you are under no obligation to do so, we strongly recommend that
  12 // you give away all software developed using our tools.
  13 //
  14 // We also ask that credit be given to us when ADLib and/or Prop are used in
  15 // your programs, and that this notice be preserved intact in all the source
  16 // code.
  17 //
  18 // This software is still under development and we welcome(read crave for)
  19 // any suggestions and help from the users.
  20 //
  21 // Allen Leung (leunga@cs.nyu.edu)
  22 // 1994
  23 //
  24 // Kudos to James Litsios <litsios@iis.ee.ethz.ch> for his tireless
  25 // testing efforts and useful feedbacks.  Certain part of Prop
  26 // now incorporates some of James' ideas on reference counting and
  27 // hash consing.
  28 //////////////////////////////////////////////////////////////////////////////
  29
  30 #ifndef hash_consing_h
  31 #define hash_consing_h
  32
  33 #include <new.h>
  34 #include <AD/generic/ordering.h>    // hashing and comparison
  35
  36 template <class T>
  37    class UniqueObj {
  38    public:
  39       ////////////////////////////////////////////////////////////////////////
  40       //  Memory management
  41       ////////////////////////////////////////////////////////////////////////
  42       void * operator new    (size_t);
  43       void   operator delete (void *);
  44    };
  45
  46 #endif