Hi Perl Monk,

Here is the problem description, I have a .h file which has all the "macro" flags definition and the .c file uses these macro.

The problem is I need to remove the part of the code which are undefined in the .c file. Here is the example,

Below is the example of "types.h" file, 

#include <stdio.h>
#include <stdlib.h>

#define ALPHA 1
#define BETA
#define GAMMA 0

[download]

Here is the corresponding C file 

#include "types.h"

void main()
{
 int a, b, c;
 float d,e,f;

 #if (ALPHA)
  c = a+b;
 #endif

 #ifdef BETA
   f = e*d;
   #if (GAMMA)
     c = c + 10;
   #endif 
 #endif
}

[download]
The above example is a dummy example from the above code the result has to be like, 
void main()
{
 int a, b, c;
 float d,e,f;

 #if (ALPHA)
  c = a+b;
 #endif

 #ifdef BETA
   f = e*d;
 #endif
}

[download]

I was reading through the XS of perl will this help me, as of now I dont have any code or solution still looking for ideas.

Thanks a lot, -Prassi

In reply to C macro pre processing by prassi

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