Make gcc to skip "-Werror=unused-parameter" for a specific .cpp file

Asked Dec 02 '20 at 17:36

Active Dec 03 '20 at 05:55

Viewed 186 times

Is there any way in C++ to make the g++ to skip "-Werror=unused-parameter" errors for a specific .cpp file?

Example:

int foo(int a, int b)
{
    a++;
    std::cout << "b is not used in this function";
    return a*a;
}

edited Dec 03 '20 at 05:55

asked Dec 02 '20 at 17:36

John Cooper

By compiling these file(s) with a separate command with this warning disabled. How to do that depends on the building system you use. – t.niese Dec 02 '20 at 17:40
Could you provide have an example of code with some detailled output please? :) – Jean-Benoit Harvey Dec 02 '20 at 17:41
1

The [`[[maybe_unused]]`](https://en.cppreference.com/w/cpp/language/attributes/maybe_unused) attribute might help. – IlCapitano Dec 02 '20 at 17:42
2

I presume this is a duplicate, although for this warning, I'd prefer `[[maybe_unused]]`: https://stackoverflow.com/questions/3378560 – Drew Dormann Dec 02 '20 at 17:43
-Wno-unused-variable use this switch – CV_Ruddha Dec 02 '20 at 18:07
@Jean-Benoit Harvey added. – John Cooper Dec 03 '20 at 05:55
@DrewDormann Yes you are right. That's what I was looking for. I saw it somewhere before but forgot it. Thanks. – John Cooper Dec 03 '20 at 05:56

0 Answers0