Bug Vanquisher

30 September 2009

Infinite Circular Looping

Filed under: Tips — Tanveer Badar @ 10:19 PM

Want to turn a linear sequence into a circular one so you have go round and round over it as long as needed? Here is how (with the added bonus of resetting and stopping the iteration)

   IEnumerable<T> GetNextInterval<T>( IEnumerable<T> input )
            bool flag = true;
            while( flag )
                input.Reset( );
                foreach( T t in input )
                    if( end )
                        flag = false;
                        end = false;
                    if( reset )
                        reset = false;
                    yield return t;

Setting reset to true short circuits the loop and starts from beginning again. Setting end to true terminates it entirely.

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