What are the consequences of ignoring: warning: unused parameter

Question

I am working on a C++ project and I noticed that we have a number of warnings about unused parameters.

What effect could it have if these warnings are ignored?

Answer 1

For a gcc specific way to disable the warning, you can use __attribute__((unused)) like

void foo(int a, int b __attribute__((unused))) {

}

To ignore the second parameter. If your program relies on GCC technologies already, you can use that attribute to be 100% safe from that kind of warning.