https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98001
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-8 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:c6145860aac6acfeed2a98fe7532dd2cd0ffab2b commit r8-10650-gc6145860aac6acfeed2a98fe7532dd2cd0ffab2b Author: Jonathan Wakely <jwak...@redhat.com> Date: Thu Nov 26 11:25:55 2020 +0000 libstdc++: Fix undefined FILE* operations in test We only need to check that the constructor doesn't clear errno, so there's no need to use an invalid FILE* for that. libstdc++-v3/ChangeLog: PR libstdc++/98001 * testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid FILE* to constructor. (cherry picked from commit 2762cb1df686fc1ebcee23c7c4f0f6e8bf5a6abc)
