Function ByteArrayToString

cpp/src/parquet/types.h:714–716

inline bool operator!=(const Int96& left, const Int96& right) { return !(left == right); }

static inline std::string ByteArrayToString(const ByteArray& a) {
  return std::string(reinterpret_cast<const char*>(a.ptr), a.len);
}

static inline void Int96SetNanoSeconds(parquet::Int96& i96, int64_t nanoseconds) {
  std::memcpy(&i96.value, &nanoseconds, sizeof(nanoseconds));