No warning on unused exception parameter with `-Wall -Wextra`

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Open MarkZH opened 5 years ago

MarkZH commented 5 years ago


Bugzilla Link	41746
Version	8.0
OS	Linux
Attachments	Source file demonstrating bug
CC	@davidbolvansky,@DougGregor,@zygoloid

~ > cat unused.cpp

int main()
{
    try
    {
        throw 0;
    }
    catch(int k)
    {
    }

    return 0;
}

Compile with: clang++ -Wall -Wextra unused.cpp

No warnings are produced about the unused exception parameter k.

davidbolvansky commented 5 years ago

You can use -Wunused-exception-parameter

But not sure why -Wunused-exception-parameter is not of -Wall / -Wextra ...