Method populate

src/basicio.cpp:612–617

@brief Populate the block. @param source The data populate to the block @param num The size of data

  //! @param source The data populate to the block
  //! @param num The size of data
  void populate(const byte* source, size_t num) {
    size_ = num;
    data_ = new byte[size_];
    type_ = bMemory;
    std::memcpy(data_, source, size_);
  }

  /*!
    @brief Change the status to bKnow. bKnow blocks do not contain the data,