translating "setattr" to C++
Peter Hansen
peter at engcorp.com
Fri Mar 19 08:27:00 EST 2004
Eric wrote:
> Slightly off topic, i know, but here goes:
>
> I'm trying to xlate a module of mine to C++. Only problem is, it makes
> heavy use of "setattr". Anyone know a straightforward way to do
> "setattr" in C++ ?
Thinking about what setattr() does, and about how C++ works, I suspect
there is no straightforward way. There _might_ be some existing library
for introspection that can do something resembling what you want.
Think about it: setattr() uses the names of arbitrary (possibly
non-existing, but of course you can't solve that in C++ at all)
attributes that are contained in strings. That means the resolution is
done at run-time. In C++, on the other hand, all the names pretty much
vanish at compile-time, so unless you prepare mappings of some kind
ahead of time, or have a package which can read dynamically from header
files or something, you're plain screwed. AFAICS.
-Peter
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