uniq_pointer.hh

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/* -*- C++ -*-
 * $Id: uniq_pointer.hh 957 2005-03-07 16:01:20Z sjoyeux $
 */
#ifndef UTILMM_SMART_UNIQ_POINTER_HEADER
# define UTILMM_SMART_UNIQ_POINTER_HEADER
#include "utilmm/config/config.h"

#include "utilmm/smart/bits/ref_count_manager.hh"
#include "utilmm/smart/bits/uniq_memory.hh"
#include "utilmm/smart/pointer.hh"

namespace utilmm {
  namespace smart {

    template< typename Ty, class Hash=hash<Ty>, class Equal=std::equal_to<Ty> >
    struct uniq_pointer {
    private:
      typedef ref_count::uniq_memory<Ty, Hash, Equal> mem_type;
      typedef ref_count::manager<mem_type> manager_type;
      
    public:
      typedef pointer<manager_type> type; 
    }; // struct utilmm::smart::uniq_pointer

  }; // namespace utilmm::smart

  template<class Manager>
  struct hash< smart::pointer<Manager> >
    :public std::unary_function<smart::pointer<Manager>, size_t> {
    size_t operator()(smart::pointer<Manager> const &x) const {
      hash< typename smart::pointer<Manager>::pointer_type > hf;

      return size_t(x.null()?0:hf(x));
    }
  }; // struc utilmm::hash< smart::pointer<> >

} // namespace utilmm

#endif // UTILMM_SMART_UNIQ_POINTER_HEADER