...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::type_erasure::bad_function_call
// In header: <boost/type_erasure/exception.hpp> class bad_function_call : public invalid_argument { public: // construct/copy/destruct bad_function_call(); };