Function GetVarint64Ptr

tensorflow/core/lib/core/coding.cc:177–192

}

const char* GetVarint64Ptr(const char* p, const char* limit, uint64* value) {
  uint64 result = 0;
  for (uint32 shift = 0; shift <= 63 && p < limit; shift += 7) {
    uint64 byte = *(reinterpret_cast<const unsigned char*>(p));
    p++;
    if (byte & 128) {
      // More bytes are present
      result |= ((byte & 127) << shift);
    } else {
      result |= (byte << shift);
      *value = result;
      return reinterpret_cast<const char*>(p);
    }
  }
  return nullptr;
}

bool GetVarint64(StringPiece* input, uint64* value) {
  const char* p = input->data();