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

diagnostic_information

#include <boost/exception/diagnostic_information.hpp>

namespace
boost
    {
    std::string diagnostic_information( std::exception const & x );
    }

Returns:

If dynamic_cast<boost::exception const *>(&x) is not null, the returned string is initialized by a call to exception::diagnostic_information; otherwise, the returned string combines the output of x.what() and typeid(x).name().