Algorithm.h

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#ifndef ZYPP_BASE_ALGORITHM_H
#define ZYPP_BASE_ALGORITHM_H
 
#include <algorithm>
 
namespace zypp
{ 
 
  template <class TIterator, class TFilter, class TFunction>
    inline int invokeOnEach( TIterator begin_r, TIterator end_r,
                             TFilter filter_r,
                             TFunction fnc_r )
    {
      int cnt = 0;
      for ( TIterator it = begin_r; it != end_r; ++it )
        {
          if ( filter_r( *it ) )
            {
              ++cnt;
              if ( ! fnc_r( *it ) )
                  return -cnt;
            }
        }
      return cnt;
    }
 
  template <class TIterator, class TFunction>
    inline int invokeOnEach( TIterator begin_r, TIterator end_r,
                             TFunction fnc_r )
    {
      int cnt = 0;
      for ( TIterator it = begin_r; it != end_r; ++it )
        {
          ++cnt;
          if ( ! fnc_r( *it ) )
            return -cnt;
        }
      return cnt;
    }
 
    template <class Container, class Elem>
    bool contains ( const Container &c, const Elem &elem )
    {
      return ( std::find( c.begin(), c.end(), elem ) != c.end() );
    }
 
    template <class Container, class Fnc >
    bool any_of ( const Container &c, Fnc &&cb )
    {
      return std::any_of( c.begin(), c.end(), std::forward<Fnc>(cb) );
    }
 
} // namespace zypp
#endif // ZYPP_BASE_ALGORITHM_H