Fedora and fallback DNS servers

Posted Mar 6, 2021 17:58 UTC (Sat) by anton (subscriber, #25547)
In reply to: Fedora and fallback DNS servers by excors
Parent article: Fedora and fallback DNS servers

It doesn't apply to e.g. programming languages, where the person who writes the invalid input can immediately see a fatal error message and fix it themselves.

If only programming languages guaranteed a fatal error message on invalid input. We have that for syntax and so-called "static semantics" (things beyond context-free grammars that are checked by the compiler). But then there are run-time errors, which may be seen by a different person. And then there is undefined behaviour, where a new version of the compiler that the code was tested with might compile the code different than the old version; or worse, the same version of a library might choose to behave differently on some hardware than on the tested hardware (happened with memcpy).