I'm on VS2013, with BOOST_COROUTINES_V1 defined. I've merged boost::coroutine's exception test with boost::exception's derives_std_exception test. A std::exception& is caught when based on docs I would expect derives_std_exception to be caught. Am I doing something obviously wrong? Thanks, Jeff #include <boost/coroutine/all.hpp> #include <boost/bind.hpp> struct derives_std_exception : std::exception {}; namespace coro = boost::coroutines; typedef coro::coroutine< void() > coro_void_void; template< typename E > void f14(coro_void_void::caller_type & , E const& e) { throw e; } int main() { try { coro_void_void coro( boost::bind(f14< derives_std_exception > , _1, derives_std_exception())); return -1; } catch (derives_std_exception const&) { return 0; } catch (std::exception const&) { return -1; } catch (...) { return -1; } }