#17979: Reimplementation of IntegerListsLex
-------------------------------------+-------------------------------------
Reporter: aschilling | Owner:
Type: defect | Status: needs_work
Priority: blocker | Milestone: sage-6.6
Component: combinatorics | Resolution:
Keywords: days64 | Merged in:
Authors: Bryan Gillespie, | Reviewers:
Anne Schilling, Nicolas M. Thiery | Work issues:
Report Upstream: N/A | Commit:
Branch: | 0c5305c958517701a68b4419f8a173f544cbefd4
public/ticket/17979 | Stopgaps:
Dependencies: |
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Comment (by nthiery):
Replying to [comment:136 jdemeyer]:
> Replace
> {{{
> raise ValueError("The specified parameters do not allow for a
lexicographic iterator!")
> }}}
> by
> {{{
> raise RuntimeError("the specified parameters do not allow for a
lexicographic iterator")
> }}}
Really? RuntimeError is "for an error that doesn’t fall in any of the
other categories", where as we do fit within the ValueError category:
"when a built-in operation or function receives an argument that has
the right type but an inappropriate value". Here IntegerListsLex did
receive inappropriate value which makes the lexicographic enumeration
improper.
Nicolas
--
Ticket URL: <http://trac.sagemath.org/ticket/17979#comment:161>
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