Question

I am using gcc compiler. I am working on a code that frequently involves writing chunks of statements inside a single #define directive. For example the following :

#include<stdio.h>    
#define DO_RR(x) do { \
for(i=0;i<x; i++) \
    printf("%d", i); \
}while(0);

int main() {
  int i=0;
  DO_RR(5)
  return 0;
}

Now I want to be able to single step through the statements in DO_RR. However when I try it, the control jumps directly from DO_RR statement in main to the next statement and does not single step. Is there anyway to achieve stepping inside the preprocessor blocks ?

Answer 1

You cannot, #defines are expanded by the preprocessor and are not present in the code.