Hmm. I wrote C and C++ for 20 years and while I haven't used either in some time, I don't remember this ever being a problem, except when trying to port Unix co

Hmm. I wrote C and C++ for 20 years and while I haven't used either in some time, I don't remember this ever being a problem, except when trying to port Unix code that expected errno to be global to Windows (but that's the opposite problem of the one you're talking about).