----Original Message---- From: Gennadiy Rozental [mailto:gennadiy.rozental@thomson.com] Sent: 07 March 2005 07:18 To: boost@lists.boost.org Subject: [boost] [optional]output
Hi,
Maybe it's something that I missed, but why optional doesn't define output operator something like this:
template<typename T> inline std::ostream& operator<<( std::ostream& ostr, optional<T> const& v ) { if( v ) ostr << *v; return ostr; }
I don't think optional should define an output operator at all. There are too many possibly useful definitions. For example: template<typename T> inline std::ostream& operator<<( std::ostream& ostr, optional<T> const& v ) { if( v ) { ostr << true << ' ' << *v; } else { ostr << false; } return ostr; } -- Martin Bonner Martin.Bonner@Pitechnology.com Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ, ENGLAND Tel: +44 (0)1223 441434