106     const size_t byte_ix = i;  in FN()  local
107     size_t ix = byte_ix * bitmaplen;  in FN()
108     size_t insert_cost_ix = data[byte_ix] * num_histograms;  in FN()
117         block_id[byte_ix] = (uint8_t)k;  in FN()
121     if (byte_ix < 2000) {  in FN()
122       block_switch_cost *= 0.77 + 0.07 * (double)byte_ix / 2000;  in FN()
135     size_t byte_ix = length - 1;  in FN()  local
136     size_t ix = byte_ix * bitmaplen;  in FN()
137     uint8_t cur_id = block_id[byte_ix];  in FN()
138     while (byte_ix > 0) {  in FN()
141       --byte_ix;  in FN()
144         if (cur_id != block_id[byte_ix]) {  in FN()
145           cur_id = block_id[byte_ix];  in FN()
149       block_id[byte_ix] = cur_id;  in FN()