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Pharo is a dynamic reflective pure object-oriented language supporting live programming inspired by Smalltalk.
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Interval size error with Floating Point step #17284

Open rjsargent opened 1 month ago

rjsargent commented 1 month ago

Pharo v9 through v12 overstates the size of (-4 to: 4 by: 0.1) Bug description Since 0.1 is not exactly represented in FP, we should see only 80 elements in that interval. But, #size calculates as 81 rather than 80.

To Reproduce | elements | elements := OrderedCollection new. -4 to: 4 by: 0.1 do: [ :i | elements add: i]. elements size 80

| elements | elements := OrderedCollection new. (-4 to: 4 by: 0.1) do: [ :i | elements add: i]. elements size 81

Expected behavior

do: should enumerate the same 80 elements that #to:by:do: does.

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Version information:

Expected development cost Expected to be small

welcome[bot] commented 1 month ago

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