238 struct index_gen {  struct
247   index_gen() { }  in index_gen()  argument
250   explicit index_gen(const index_gen<NumRanges-1,ND>& rhs,  in index_gen()  function
257   index_gen<NumRanges+1,NumDims+1>
260     index_gen<NumRanges+1,NumDims+1> tmp;  in operator []()  argument
266   index_gen<NumRanges+1,NumDims>
269     index_gen<NumRanges+1,NumDims> tmp;  in operator []()  argument
278 void accept_gen(index_gen<NRanges,NDims>& indices) {  in accept_gen()
288   void operator[](index_gen<NRanges,NDims>& indices) {  in operator []()
298   index_gen<0,0> indices;  in main()
305   accept_gen(index_gen<0,0>());  in main()