Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Boost Exception

boost/exception/info_tuple.hpp

Synopsis

#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 );
    }

See Also:

Boost Exception
boost/exception.hpp
tuple/operator<<