https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90682
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Fri May 31 10:35:11 2019 New Revision: 271808 URL: https://gcc.gnu.org/viewcvs?rev=271808&root=gcc&view=rev Log: PR libstdc++/90682 allow set_terminate(0) and set_unexpected(0) Make these functions restore the default handlers when passed a null pointer. This is consistent with std::pmr::set_default_resource(0), and also matches the current behaviour of libc++. In order to avoid duplicating the preprocessor condition from eh_term_handler.cc more that into a new eh_term_handler.h header and define a macro that can be used in both eh_term_handler.cc and eh_terminate.cc. PR libstdc++/90682 * libsupc++/eh_term_handler.cc: Include eh_term_handler.h to get definition of _GLIBCXX_DEFAULT_TERM_HANDLER. * libsupc++/eh_term_handler.h: New header defining _GLIBCXX_DEFAULT_TERM_HANDLER. * libsupc++/eh_terminate.cc: Include eh_term_handler.h. (set_terminate): Restore default handler when argument is null. (set_unexpected): Likewise. * testsuite/18_support/set_terminate.cc: New test. * testsuite/18_support/set_unexpected.cc: New test. Added: trunk/libstdc++-v3/libsupc++/eh_term_handler.h - copied, changed from r271807, trunk/libstdc++-v3/libsupc++/eh_term_handler.cc trunk/libstdc++-v3/testsuite/18_support/set_terminate.cc trunk/libstdc++-v3/testsuite/18_support/set_unexpected.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/libsupc++/eh_term_handler.cc trunk/libstdc++-v3/libsupc++/eh_terminate.cc
