anything like C++ references?
tomas at fancy.org
Tue Jul 15 02:18:40 CEST 2003
Michael Chermside wrote:
> > Assignment never copies anything, or creates anything except for
> > changing the variable to point to a different address location.
> > *Every* Python assignment (a=b) is like the C assignment (a=&b).
> I have nothing whatsoever to add to this... it is just so clearly and
> simply stated that I felt it was worth repeating.
Although I don't think that it's correct. Either a and b are
both pointer types or they're not- but IMHO it's much more useful
(perhaps) to C programmers to say "everything's a pointer" and
when you say
a = 5
You're saying the almost-C equivalent to
a = &5;
If one considers that everything is a pointer, and that you
cannot necessarily change the object that the pointer points to
(there is no equivalent of
*a = 5
), then it actually becomes (hopefully) fairly straight-forward
to the C programmer.
So- it would probably be more helpful to C programmers to say
"everything is a pointer" rather than "everything is a
reference," and then add that "there is no pointer
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