https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107815
--- Comment #16 from dave.anglin at bell dot net --- This is what the test prints: 6.47518e-4966 6e-4966 xxx.cc:79: void test(std::chars_format): Assertion 'ec4 == std::errc() && ptr4 == ptr1' failed. ABORT instruction (core dumped)
