PF> I have a large program littered with these:

PF>         #pragma off (unreferenced)

PF> It is a Watcom pragma,  which I want to leave in the code.  For
PF> readabilty,  I don't want to replace each of these with a five line
PF> "#ifdef __IBMC__" block.

PF> Can anyone think of a clever way to make the preprocessor work for me?
PF> I don't mind changing the above line;  but I want to leave at as one
PF> line,and select a different #pragma for different compilers.

First I thought that defining different macros would work, like this:

#if defined (__IBMC__) || defined (__IBMCPP__)
# define UNREF  info (nopar, nouse)
#elif defined (__WATCOMC__)
# define UNREF  off (unreferenced)
#elif defined (_MSC_VER)
# define UNREF  warning (disable:4100)
#endif

#pragma UNREF
int f (int a)
{
  return 0;
}


...but Watcom and IBM preprocess pragmas differently than MSVC. In other
words, above works with MSVC but not with others.

How about this approach:

#define UNREFERENCED(a) ((void)(a))

int f1 (int a)
{
  return 0;
  UNREFERENCED(a);
}



        // Albert                      email: jla{at}to.icl.fi

--- GoldED/2 2.50+