Function FindUtf8PosBackward

be/src/util/string-util.h:105–107

/// TODO(IMPALA-10761): Add query option to control the error handling.
int FindUtf8PosBackward(const uint8_t* str_ptr, const int str_len, const int index);
inline int FindUtf8PosBackward(const char* str_ptr, const int str_len, const int index) {
  return FindUtf8PosBackward(reinterpret_cast<const uint8_t*>(str_ptr), str_len, index);
}

/// Subclass of std::stringstream that adds functionality to allow overwriting the very
/// last character of the stream. The purpose of this additional functionality is to