Function Utf8Decode

internal/utf8.h:58–62

size_t Utf8Decode(const absl::Cord::CharIterator& it,
                  char32_t* absl_nullable code_point);
inline std::pair<char32_t, size_t> Utf8Decode(absl::string_view str) {
  char32_t code_point;
  size_t code_units = Utf8Decode(str, &code_point);
  return std::pair{code_point, code_units};
}
inline std::pair<char32_t, size_t> Utf8Decode(
    const absl::Cord::CharIterator& it) {
  char32_t code_point;