Simplifying dilog.c: using a look-up table, using REAL_EPSILON and folding some constants into the functions.

Author: unhyperbolic

src/snappy/extensions/Orb/kernel/headers/precision/double/real_type.h

@@ -26,6 +26,8 @@ typedef double Real_struct;
 
 SNAPPEA_NAMESPACE_END_SCOPE
 
+#define Real_literal(x) (x)
+
 #define Real_from_string(x) (atof((char *)x))
 
 #define REAL_MAX DBL_MAX