namespace sc_core {

// ----------------------------------------------------------------------------
//  CLASS : sc_event_expr
//
//  The event expression class.
// ----------------------------------------------------------------------------

class sc_event_and_expr // implementation-defined
{
public:
    operator sc_event_and_list const &() const;
};

sc_event_and_expr
operator & ( sc_event_and_expr, sc_event const & );

sc_event_and_expr
operator & ( sc_event_and_expr, sc_event_and_list const & );

class sc_event_or_expr
{
public:

    operator sc_event_or_list const &() const;
};

sc_event_or_expr
operator | ( sc_event_or_expr, sc_event const & );

sc_event_or_expr
operator | ( sc_event_or_expr, sc_event_or_list const & );


// ----------------------------------------------------------------------------
//  CLASS : sc_event
//
//  The event class.
// ----------------------------------------------------------------------------

class sc_event
{
public:
     // ...

     sc_event_or_expr  operator | ( const sc_event& ) const;
     sc_event_or_expr  operator | ( const sc_event_or_list& ) const;
     sc_event_and_expr operator & ( const sc_event& ) const;
     sc_event_and_expr operator & ( const sc_event_and_list& ) const;
};

// ----------------------------------------------------------------------------
//  CLASS : sc_event_or_list
//
//  OR list of events.
// ----------------------------------------------------------------------------

class sc_event_or_list
{
public:
    sc_event_or_list();
    sc_event_or_list( const sc_event& );

    void swap( sc_event_or_list& );
    int size() const;

    sc_event_or_list& operator |= ( const sc_event& );
    sc_event_or_list& operator |= ( const sc_event_or_list & );

    sc_event_or_expr  operator | ( const sc_event& ) const;
    sc_event_or_expr  operator | ( const sc_event_or_list& ) const;
};

// ----------------------------------------------------------------------------
//  CLASS : sc_event_and_list
//
//  AND list of events.
// ----------------------------------------------------------------------------

class sc_event_and_list
{
public:

    sc_event_and_list();
    sc_event_and_list( const sc_event& );

    void swap( sc_event_and_list& );
    int size() const;

    sc_event_and_list& operator &= ( const sc_event& );
    sc_event_and_list& operator &= ( const sc_event_and_list & );

    sc_event_and_expr  operator & ( const sc_event& );
    sc_event_and_expr  operator & ( const sc_event_and_list& );
};

} // namespace sc_core

#endif

// Taf!