How do I suppress the message "A Code Analyzer message was once suppressed here, but the message is no longer generated"?

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AlexG
AlexG 2017-1-12
回答： Christopher Rock 2021-9-29
Dear all:
I have the following scenario: I want to be able to easily switch between 2 ways how a vector is calculated. I know that perhaps, it would have been more correct to have a logical variable and calculate the vector based on that variable. However, for rough testing scenarios I often keep two lines of code (e.g. a = b; a = c) and comment out the second line in the case I want to use the first approach. This, of course, generates the warning that the first calculation is redundant as it's unused. I suppress it with %#ok<ASGLU>. But then when I comment out the second assignment Matlab complains again as described in the title of the question. There seems to be no way to suppress this warning in the Matlab code analyzer preferences. And I would rather not distable the first warning about an unused assignment because it's useful. Is there a way to globally turn off the second warning only? Thanks.

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回答（2 个）

Jyotish Robin
Jyotish Robin 2017-1-18
You can selectively enable or disable specific warning messages, as long as they have been given a message identifier, with the "warning" function using the 'state' and 'message_id' input arguments.
To suppress specific warning messages, you must first find the warning identifier. Each warning message has a unique identifier. After you obtain the identifier, use this information to disable or enable the warning associated with that identifier.
You can refer the following links for more insight:
Hope it helps!
Christopher Rock
Christopher Rock 2021-9-29
You can use %#ok<%MSNU> to ignore all Code Analyzer highlighting for unused flags within the current file.

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