--- trunk/OOPSE-2.0/src/types/TorsionStamp.hpp	2005/12/05 18:23:30	2483
+++ trunk/OOPSE-2.0/src/types/TorsionStamp.hpp	2006/01/11 19:01:20	2544
@@ -54,21 +54,21 @@ class TorsionStamp : public DataHolder {
         int getMemberAt( int index ) {return members_.at(index);}
         int getNMembers() {return members_.size();}
         std::vector<int> getMembers() {return members_;}
-        bool setMembers(const std::vector<int>& members) {
+        void setMembers(const std::vector<int>& members) {
             members_ = members;
             bool ret = false;
-            if (members_.size() == 4 || members_.size() == 3) {
-                ret = true;
+            if (members_.size() < 3 || members_.size() > 4) {
+                std::ostringstream oss;
+                oss << "members" << containerToString(members) << " is an invalid" << std::endl;
+                throw OOPSEException(oss.str());
             }
-            return ret;            
         }        
 
-        bool setMembers(IntTuple4 tuple) {
+        void setMembers(IntTuple4 tuple) {
             members_.push_back(tuple.first);
             members_.push_back(tuple.second);
             members_.push_back(tuple.third);
             members_.push_back(tuple.fourth);            
-            return true;
         }
         virtual void validate();