Range.h

Go to the documentation of this file.

/*---------------------------------------------------------------------\
|                          ____ _   __ __ ___                          |
|                         |__  / \ / / . \ . \                         |
|                           / / \ V /|  _/  _/                         |
|                          / /__ | | | | | |                           |
|                         /_____||_| |_| |_|                           |
|                                                                      |
\---------------------------------------------------------------------*/
#ifndef ZYPP_RANGE_H
#define ZYPP_RANGE_H
 
#include <zypp/RelCompare.h>
 
namespace zypp
{ 
 
  namespace range_detail
  {
    bool overlaps( Rel lhs, Rel rhs, int cmp );
  }
 
  //
  //    CLASS NAME : Range
  //
  template<class Tp, class TCompare = Compare<Tp> >
    struct Range
    {
      Rel op;
      Tp value;
 
      Range()
      : op( Rel::ANY )
      {}
 
      Range( const Tp & value_r )
      : op( Rel::EQ )
      , value( value_r )
      {}
 
      Range( Rel op_r, const Tp & value_r )
      : op( op_r )
      , value( value_r )
      {}
 
      bool overlaps( const Range & rhs ) const
      { return range_detail::overlaps( op, rhs.op, TCompare()( value, rhs.value ) ); }
    };
 
  template<class Tp, class TCompare>
    inline bool overlaps( const Range<Tp,TCompare> & lhs,
                          const Range<Tp,TCompare> & rhs )
    { return lhs.overlaps( rhs ); }
 
 
  template<class Tp, class TCompare>
    inline bool operator==( const Range<Tp,TCompare> & lhs,
                            const Range<Tp,TCompare> & rhs )
    {
      return( lhs.op == rhs.op
              && (    lhs.op == Rel::ANY
                   || lhs.op == Rel::NONE
                   || relCompare( Rel::EQ, lhs.value, rhs.value, TCompare() )
                 )
            );
    }
 
  template<class Tp, class TCompare>
    inline bool operator!=( const Range<Tp,TCompare> & lhs,
                            const Range<Tp,TCompare> & rhs )
    { return ! ( lhs == rhs ); }
 
} // namespace zypp
#endif // ZYPP_RANGE_H