diff -r e8563dcaefca -r 56ebe2a31b5b stage4/generate_c/generate_c_sfcdecl.cc
--- a/stage4/generate_c/generate_c_sfcdecl.cc	Mon Apr 03 22:06:40 2017 +0100
+++ b/stage4/generate_c/generate_c_sfcdecl.cc	Mon Apr 03 22:18:22 2017 +0100
@@ -85,7 +85,7 @@
       switch (wanted_sfcdeclaration) {
         case sfcdecl_sd:
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           
           /* steps table declaration */
           s4o.print(s4o.indent_spaces + "STEP __step_list[");
@@ -120,7 +120,7 @@
           /* steps table count */
           wanted_sfcdeclaration = stepcount_sd;
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           s4o.print(s4o.indent_spaces);
           print_variable_prefix();
           s4o.print("__nb_steps = ");
@@ -141,12 +141,12 @@
           s4o.indent_left();
           s4o.print(s4o.indent_spaces + "}\n");
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           
           /* actions table count */
           wanted_sfcdeclaration = actioncount_sd;
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           s4o.print(s4o.indent_spaces);
           print_variable_prefix();
           s4o.print("__nb_actions = ");
@@ -170,7 +170,7 @@
           /* transitions table count */
           wanted_sfcdeclaration = transitioncount_sd;
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           s4o.print(s4o.indent_spaces);
           print_variable_prefix();
           s4o.print("__nb_transitions = ");
@@ -187,7 +187,7 @@
         case stepdef_sd:
           s4o.print("// Steps definitions\n");
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           s4o.print("\n");
           break;
         case actiondef_sd:
@@ -196,12 +196,12 @@
             // first fill up the this->variable_list variable!
             wanted_sfcdeclaration = actioncount_sd;
             for(int i = 0; i < symbol->n; i++)
-               symbol->elements[i]->accept(*this);
+               symbol->get_element(i)->accept(*this);
             action_number = 0; // reset the counter!
             wanted_sfcdeclaration = actiondef_sd;
             // Now do the defines for actions!
             for(int i = 0; i < symbol->n; i++)
-              symbol->elements[i]->accept(*this);
+              symbol->get_element(i)->accept(*this);
             // Now do the defines for actions that reference a variable instead of an action block!
             std::list<VARIABLE>::iterator pt;
             for(pt = variable_list.begin(); pt != variable_list.end(); pt++) {
@@ -219,18 +219,18 @@
         case stepundef_sd:
           s4o.print("// Steps undefinitions\n");
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           s4o.print("\n");
           break;
         case actionundef_sd:
           s4o.print("// Actions undefinitions\n");
           for(int i = 0; i < symbol->n; i++)
-            symbol->elements[i]->accept(*this);
+            symbol->get_element(i)->accept(*this);
           {
             // first fill up the this->variable_list variable!
             wanted_sfcdeclaration = actioncount_sd;
             for(int i = 0; i < symbol->n; i++)
-               symbol->elements[i]->accept(*this);
+               symbol->get_element(i)->accept(*this);
             wanted_sfcdeclaration = actionundef_sd;
             std::list<VARIABLE>::iterator pt;
             for(pt = variable_list.begin(); pt != variable_list.end(); pt++) {