Use camel case for constants and enumerators.

All capitals case should be reserved for macros and besides there is no big need to emphasize constness in general.

packages/CLPBN/horus/Var.h

@@ -24,7 +24,7 @@ class Var {
   public:
     Var (const Var*);
 
-    Var (VarId, unsigned, int = Constants::NO_EVIDENCE);
+    Var (VarId, unsigned, int = Constants::unobserved);
 
     virtual ~Var (void) { };
 
@@ -79,7 +79,7 @@ class Var {
 inline bool
 Var::hasEvidence (void) const
 {
-  return evidence_ != Constants::NO_EVIDENCE;
+  return evidence_ != Constants::unobserved;
 }