PVS-Studio warning V530 for ITK

std::vector<SizeValueType>   m_Dimensions;

template< typename TInputVideoStream >
bool
VideoFileWriter< TInputVideoStream >
::InitializeOutputParameters()
{
  ....
  m_Dimensions.empty();
  ....
}

This suspicious code was found in ITK project by PVS-Studio static code analyzer.
Warning message is:
V530 The return value of function 'empty' is required to be utilized. itkvideofilewriter.hxx 334

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/