[SystemSafety] A seasonal poser ...

[Olwen Morgan]

A wee puzzle for those who enjoy vandalising C verification tools:

Can you come up with a C program containing an expression such that 
under one order of evaluation, there are two side effects between 
sequence points and under another order of evaluation, there aren't?


... and, before the depradations of SAD make my winter absent-mindedness 
a dire pain ...


Happy Easter everyone!

Olwen