# persistence/persistent_foursome.hpp

    #ifndef STLPLUS_PERSISTENT_FOURSOME
    #define STLPLUS_PERSISTENT_FOURSOME
    ////////////////////////////////////////////////////////////////////////////////

    //   Author:    Andy Rushton
    //   Copyright: (c) Southampton University 1999-2004
    //              (c) Andy Rushton           2004 onwards
    //   License:   BSD License, see ../docs/license.html

    //   Persistence of STL foursome

    ////////////////////////////////////////////////////////////////////////////////
    #include "persistence_fixes.hpp"
    #include "persistent_contexts.hpp"
    #include "foursome.hpp"

    ////////////////////////////////////////////////////////////////////////////////

    namespace stlplus
    {

      // exceptions: persistent_dump_failed
      template<typename T1, typename T2, typename T3, typename T4, typename D1, typename D2, typename D3, typename D4>
      void dump_foursome(dump_context&, const stlplus::foursome<T1,T2,T3,T4>& data,
                         D1 dump_fn1, D2 dump_fn2, D3 dump_fn3, D4 dump_fn4);

      // exceptions: persistent_restore_failed
      template<typename T1, typename T2, typename T3, typename T4, typename R1, typename R2, typename R3, typename R4>
      void restore_foursome(restore_context&, stlplus::foursome<T1,T2,T3,T4>& data,
                            R1 restore_fn1, R2 restore_fn2, R3 restore_fn3, R4 restore_fn4);

    } // end namespace stlplus

      ////////////////////////////////////////////////////////////////////////////////
    #include "persistent_foursome.tpp"
    #endif