As a person working in a large exception-free C++ environment, I'm all ears.
Otherwise good luck porting that exception free code across multiple OSes and C++ compilers, not only the big three.
There is a "turn code into object file using compiler" C++, that is much different from "committee vision" C++, and until recently (probably until initializer lists), -fno-exceptions -fno-rtti -ffreestanding did not emmit standard library symbols, except maybe static initialization.
Current C++ is being glued to library like crazy, look at continuations...
Here-in lies the problem. This only says “no std::exception” “no throw” but nothing is stopping you from writing your own template for error handling. An exception is by definition a “unexpected condition” and we all have to handle exceptions in some form or fashion. Whether that’s with error codes, macro checks, or the like. That’s my point. Exception free code doesn’t exist. Safety guarantees are compile time at best. If this weren’t true, things like memory manipulation wouldn’t be possible. But it is. CheatEngine exists. Funnest thing is to read a var, set a var, and then check if the set var equals the set value or if it equals the old value. You just detected a memory pin cheat.