#10963: More functorial constructions
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Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-6.2
Component: categories | Resolution:
Keywords: days54 | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King, Frédéric
Report Upstream: N/A | Chapoton
Branch: | Work issues:
public/ticket/10963-doc- | Commit:
distributive | 7ab3103368e46d33f37e135a9eb09a1e16a029a7
Dependencies: #11224, #8327, | Stopgaps:
#10193, #12895, #14516, #14722, |
#13589, #14471, #15069, #15094, |
#11688, #13394, #15150, #15506, |
#15757, #15759 |
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Comment (by nthiery):
Hi Travis!
Replying to [comment:542 tscrim]:
> <rant>Nested classes have always been a problem to/for me. In Java, one
can get performance problems via private access. I tried doing nested-
classes in C++ with templates once and I couldn't get it to work. After
looking into the STL, for example an iterator, they create the iterator
outside of the container class, but have it referenced by the container
class.</rant> In python, there's some technical things I'm not fully
versed in, but it seems to be okay...at least to one level deep.
Yeah, nested classes did not go without their issues in Python too,
but it was essentially in the various support tools (pickling,
documentation) which had not yet been shaken out enough by intensive
use. Most of the issues have been fixed or reasonably worked around at
the beginning of categories (#9107 being an exception, but it's almost
done too).
> PS - Nicolas, you numbering is off `:p`
Oops. Thanks for the notice! Fixed.
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:544>
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