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I have the following code:
if (SyncStatusProgressBar.Alpha == 0)
I'm getting a suggestion of: WARNING: Compare a difference with EPSILON
Not sure what the heck that is, I tried applying the fix to see and that didn't work and CMD + Z didn't reverse the fix either which may be another bug if fixes are not registering with UNDO.
The undo not working is a bug in the 4.0.x versions - should work in the 4.1.x lane.
The issue is right - due to rounding problems it's not recommended using equality operators on floating point numbers. Many users are not aware of these numerical problems.
Microsoft has a good overview of this problem in their docs. But I need to improve the message of this issue - it's one I got contributed and didn't review yet.
For more info about that see: