Method SetBuffer

IO/Core/vtkMemoryResourceStream.cxx:21–48

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//------------------------------------------------------------------------------
void vtkMemoryResourceStream::SetBuffer(const void* buffer, std::size_t size, bool copy)
{
  if (buffer == nullptr && size != 0)
  {
    vtkErrorMacro("buffer must not be nullptr if size > 0");
    return;
  }

  this->Size = size;
  this->Pos = 0;
  this->Eos = (this->Size == 0);
  this->Holder.reset();

  if (copy && size > 0)
  {
    std::unique_ptr<unsigned char[]> ptr{ new unsigned char[size] };
    std::memcpy(ptr.get(), buffer, size);

    this->Buffer = ptr.get();
    this->Holder = MakeHolder(std::move(ptr));
  }
  else
  {
    this->Buffer = static_cast<const unsigned char*>(buffer);
  }

  this->Modified();
}

//------------------------------------------------------------------------------
std::size_t vtkMemoryResourceStream::Read(void* buffer, std::size_t bytes)