-#if defined(WIN32)
-#define DNAN ((double)fmod(0.0,0.0))
-#define DINF ((double)log(0.0))
-#else
-
-#define DNAN ((double)(0.0/0.0)) /* we use a DNAN to
- * represent the UNKNOWN
- * */
-#define DINF ((double)(1.0/0.0)) /* we use a DINF to
- * represent a value at the upper or
- * lower border of the graph ...
- * */
-#endif