made AmArg size() const

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@388 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmArg.cpp

@@ -87,7 +87,7 @@ void AmArg::push(const AmArg& a) {
   v_array->push_back(a);
 }
 
-const size_t AmArg::size() {
+const size_t AmArg::size() const {
   assertArray();  
   return v_array->size(); 
 }

core/AmArg.h

@@ -134,7 +134,7 @@ class AmArg
   // operations on arrays
   void push(const AmArg& a);
   
-  const size_t size();
+  const size_t size() const;
 
   /** throws OutOfBoundsException if array too small */
   AmArg& get(size_t idx);