nds_foreach.hh

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#ifndef NDS_FOREACH_HH
#define NDS_FOREACH_HH

namespace NDS
{

    namespace detail
    {

        template < class InputIterator1, class InputIterator2, class Function >
        Function
        for_each2( InputIterator1 first1,
                   InputIterator1 last1,
                   InputIterator2 first2,
                   Function       fn )
        {
            for ( ; first1 != last1; ++first1, ++first2 )
            {
                fn( *first1, *first2 );
            }
            return fn;
        }

        template < class InputIterator1,
                   class InputIterator2,
                   class InputIterator3,
                   class Function >
        Function
        for_each3( InputIterator1 first1,
                   InputIterator1 last1,
                   InputIterator2 first2,
                   InputIterator3 first3,
                   Function       fn )
        {
            for ( ; first1 != last1; ++first1, ++first2, ++first3 )
            {
                fn( *first1, *first2, *first3 );
            }
            return fn;
        }
    }
}

#endif // NDS_FOREACH_HH