+bool HYDROData_Tool::IsNan( double theValue )
+{
+#ifdef WIN32
+ return _isnan( theValue );
+#else
+ return isnan( theValue );
+#endif
+}
+
+bool HYDROData_Tool::IsInf( double theValue )
+{
+#ifdef WIN32
+ return (!_finite( theValue ) );
+#else
+ return isinf( theValue );
+#endif
+}
+