#13778: lazy list
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Reporter: vdelecroix | Owner: jason
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.6
Component: misc | Resolution:
Keywords: list, iterator | Work issues:
Report Upstream: N/A | Reviewers: Travis Scrimshaw
Authors: Vincent Delecroix | Merged in:
Dependencies: | Stopgaps:
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Changes (by vdelecroix):
* status: positive_review => needs_work
Comment:
I am sorry. Using and reusing the code I found a mistake
{{{
sage: from sage.misc.lazy_list import lazy_list
sage: lazy_list([0,0]
Traceback (most recent call last):
...
IndexError: lazy list index out of range
}}}
The problem comes from the fact that (stop - start) // step is not the
good formula for the length. We should take the ceil and not the floor.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13778#comment:8>
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