...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
#include <boost/exception/info.hpp> #include <boost/tuple/tuple.hpp> namespace boost { template <class E, class Tag1, class T1, ..., class TagN, class TN> E const & operator<<( E const & x, tuple< error_info<Tag1,T1>, ..., error_info<TagN,TN> > const & v ); }