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Activate unused variable warning [message #1848894]

Wed, 22 December 2021 09:01

Eclipse User

That should be a very easy one: I just need to see a warning symbol when I declare a variable that is never used. I had a look at
Window -> Preferences -> C/C++ -> Code Analysis
but that problem is not on the list.
Is there any way I could activate that warning? Thanks in advance.

Re: Activate unused variable warning [message #1848938 is a reply to message #1848894]

Fri, 24 December 2021 13:49

Eclipse User

There are options under "Potential Programming Problems"
They don't work?
index.php/fa/41495/0/

Attachment: Unused-Screenshot_2021-12-24_13-47-05.png
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Re: Activate unused variable warning [message #1848939 is a reply to message #1848938]

Fri, 24 December 2021 14:06

Eclipse User

I also thought that "unused variable declaration in file scope" might be the right one, but unfortunately it does not work or at least it does not solve this issue...

Re: Activate unused variable warning [message #1850091 is a reply to message #1848939]

Tue, 15 February 2022 09:50

Eclipse User

I am still having this problem and as I said, checking "Unused Variable declaration in file scope" is not the solution. I have seen that one could "customize the problem", but I am using the default settings.
I have even tested with with a hello_world.c adding an unused variable and I did not get any warning from Eclipse. The GCC compiler indeed finds the unused variable as expected.

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