Disable one unused variable warning

Question

How can I disable one warning in one place only?

I have one variable which I temporarily don't use. Xcode shows me a warning about the "unused variable". I want to disable the warning, but for this variable only, not all warnings of this type.

Is it possible without setting/getting this variable's value?

Answer 1

It's pretty simple:

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-variable"
    NSUInteger abc; /// Your unused variable
#pragma clang diagnostic pop

But keeping unused variable is redundant and generally bad idea. Unused code should be removed. If you use git, there all changes are still in your repo and you can revert your code if you found that this variable is necessary.

Answer 2

From GCC / Specifying Attributes of Variables (understood by Clang as well):

int x __attribute__ ((unused));

or

int y __attribute__((unused)) = initialValue ;