_S_path_cache_len
int __j = __curr_depth + 1 - _S_path_cache_len;
if (_S_path_cache_len == __current_index) {
for (__i = 0; __i < _S_path_cache_len-1; __i++) {
const _RopeRep* _M_path_end[_S_path_cache_len];