Function FastInt64ToBuffer

graphlearn/src/common/string/numeric.cc:73–80

}

char* FastInt64ToBuffer(int64_t i, char* buffer) {
  uint64_t u = i;
  if (i < 0) {
    *buffer++ = '-';
    u = 0 - u;
  }
  return FastUInt64ToBuffer(u, buffer);
}

char SafeFirstChar(LiteString str) {
  if (str.empty()) {