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#2489 ✓committed
Marc-André Lafortune

Enumerable#sum should not rely on size

Reported by Marc-André Lafortune | April 14th, 2009 @ 06:27 AM | in 2.3.4

Enumerable#sum should be valid for any Enumerable, not just those that respond_to? :size (like Array but unlike Range, for example).

My simple change maintains compatibility and doesn't rely on 'size'. I added a test attempting to sum a range which raises an exception with the previous definition of sum.


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