// Declaration
boost::optional< ::com::sun::star::drawing::LineStyle >      m_aLineStyle;

// Code
m_aLineStyle = LineStyle_NONE;




// Compile Error
/home/mark/OOo/filter/source/svg/svgreader.cxx:177: error: no match for 'operator=' in '((SVGAttributes*)this)->SVGAttributes::m_aLineStyle = LineStyle_NONE'
/home/mark/OOo/solver/680/unxlngi6.pro/inc/boost/optional.hpp:154: note: candidates are: boost::optional<T>& boost::optional<T>::operator=(const boost::optional<T>&) [with T = com::sun::star::drawing::LineStyle]