> > > It's not that we confuse flags with some other flag all that
> > > frequently that would necessiate some structure-based more abstract
> > > protection of these variables.
> are you sure type-checking is really needed? Sure people can mess up the
> flags variable, but 64-bit archs could do a sizeof at compile-time.
Yes, it is needed; type-checking can be easily implemented as
unsigned long foo;
(&foo == &arg);
-- that gives warning when arg is not unsigned long.
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