 s  // Array to array      // W [k] = (ztype) S [i], with typecast     #define GB_CAST_ARRAY_TO_ARRAY(W,k,S,i)         \         W [k] = S [i]      // W [k] += (ztype) S [i], with typecast     #define GB_ADD_CAST_ARRAY_TO_ARRAY(W,k,S,i)     \         