https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79700
JMB <jmb_tux at gmx dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jmb_tux at gmx dot net --- Comment #3 from JMB <jmb_tux at gmx dot net> --- The bug is still present with g++ 8.3.0 on Ubuntu 19.04 (g++ (Ubuntu 8.3.0-6ubuntu1) 8.3.0) as tested with sqrtl. As g++ is not conformant with c++11 (AFAIK): std::sqrt(n) will result in the error message: error: ‘sqrtl’ is not a member of ‘std’ while using '# include <ctime>', this bug should be fixed. Otherwise please give a short comment to this bug report explaining why this can not or should not be fixed. Especially if giving C++14 as default ...