Possible bug in visdiff - need confirmation and a workaround

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Gehan Selim 2019-11-14

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https://ww2.mathworks.cn/matlabcentral/answers/491138-possible-bug-in-visdiff-need-confirmation-and-a-workaround

评论： Gehan Selim 2019-11-15

Hi,

InMatlab 2019a, I ran visdiff(ver1,ver2) for the 2 attached models, named ver1.slx and ver2.slx.

The output shows that Constant72 in ver1 has undergone a change to become Constant9 in ver2.

This result seems weird to me since Constant9 in ver2 has an equivalent Constant9 in ver1 . Both constants appear in the same exact position of the 2 models.

Can you confirm if this is a bug ? If yes, is there a workaround for it ?

Thanks

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Answer 1

Fangjun Jiang 2019-11-14

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https://ww2.mathworks.cn/matlabcentral/answers/491138-possible-bug-in-visdiff-need-confirmation-and-a-workaround#answer_401558

I think it is a bug, or at least a defect. I've seen similar issues. Inserting an Inport block in the middle of a subsystem block causes lots of other Inport blocks deemed changed. visdiff still needs significant improvement.

Report these example models to Tech Support and let them confirm whether it is a bug or not.