#ifdef inside #define

Question

I am trying to write something like this:

#define COV_ON(x) \\
                #ifdef COVERAGE_TOOL \\
                    _Pragma (COVERAGE #x)
                     


        

Answer 1

As you mentioned it is not possible to have an #ifdef in a #define. What you should do instead is reverse the order:

#ifdef COVERAGE_TOOL \
  #define COV_ON(x) \
    etc.
#endif