12/4    Is there a way to do a c/c++ log macro/function so that in the log
        message it will automatically output the filename/function name
        or something of that sort?
        \_ One (bad) attempt, just to give you an idea:
        #define LOGMSG logMsg(__FILE__, __LINE__,

        int logMsg(char *fname, int line, char *msgfmt, ...) {

           char msg[512]; va_list vl;
           va_start(vl, msgfmt); vsprintf(msg, msgfmt, vl); va_end(vl);
           printf("%s:%d : %s", fname, line, msg);
           return 0;
        }
        Macros don't allow varargs, so your uses of this macro are going to
          \_ http://docs.freebsd.org/info/gcc/gcc.info.Macro_Varargs.html
             \_ that's almost as cool as the shirt folding thing.  Thanks.

        look like
        LOG_MSG "This is error number %d\n", foo);
               ^ note missing "("
        The macro will expand this to
        logMsg(__FILE__, __LINE__, "This is error number %d\n", foo);
        and your log msg will look like:
        myfile.c:104 : This is error number 5
        It would be a lot nicer if you could define some standard log formats,
        then you wouldn't have to do that horrible horrible macro stuff.
        \_ You should use log4cplus.  I use it and it's fairly easy to
           configure.