boost/exception/info_tuple.hpp
Synopsis
#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 );
}