Red OOP on function exit

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Martin Dowie 2015-6-23

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https://ww2.mathworks.cn/matlabcentral/answers/224998-red-oop-on-function-exit

关闭： MATLAB Answer Bot 2021-8-20

I have a customer vector class (it's a 'bounded vector') object on my stack and when the function end ('}'), I get a red OOP error, the context pop-up suggests there are 2 calls to the dtor from this class. This seems wrong...the stack object should just be destroyed.

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Mukul Rao 2015-6-24

Can you provide more details, attach some code? It is very difficult to relate to the question at this stage.

Martin Dowie 2015-6-25

Sorry, no I can't (confidential) but I think I've solved it - there was an error in the copy-ctor, where it updated a member data (the 'count') before the check for self-assignment. I think Polyspace was considering this value to be uninitialized after the copy if self-assignment was happening, e.g. via a pair of aliases into the unit under test - but given that at some point the only ctor would have to have been called and that initializes the value, so it can't actually happen.

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