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Update programming.rst #2768

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2 changes: 1 addition & 1 deletion Doc/faq/programming.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -803,7 +803,7 @@ the same sign as ``i``.
There are few real use cases for ``i % j`` when ``j`` is negative. When ``j``
is positive, there are many, and in virtually all of them it's more useful for
``i % j`` to be ``>= 0``. If the clock says 10 now, what did it say 200 hours
ago? ``-190 % 12 == 2`` is useful; ``-190 % 12 == -10`` is a bug waiting to
ago? ``-190 % 12 == 2`` is useful; ``-190 % -12 == -10`` is a bug waiting to
bite.

@terryjreedy terryjreedy Jul 24, 2017 •
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The trivial correction is wrong, and it misses the point of the 'False' equality. If -190 % 12 were -10 instead of 2, it would be less useful and possibly lead to bugs.



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