Method BackUp

c++/src/Compression.cc:192–199

  };

  void CompressionStream::BackUp(int count) {
    uint64_t backup = static_cast<uint64_t>(count);
    uint64_t currSize = rawInputBuffer.size();
    if (backup > currSize) {
      throw CompressionError("Can't backup that much!");
    }
    rawInputBuffer.resize(currSize - backup);
  }

  uint64_t CompressionStream::flush() {
    compressInternal();