Function template operator<<
boost::gregorian::operator<< — operator<< for gregorian::greg_weekday typically streaming: Sun, Mon, Tue, ...
template<typename charT, typename traits>
std::basic_ostream< charT, traits > &
operator<<(std::basic_ostream< charT, traits > & os,
const greg_weekday & wd);
Uses the date facet to determine output string as well as selection of long or short string. Default if no facet is installed is to output a 3 char english string for the day of the week.