Made ExpEvaluator::popOne() static and public, it is really a helper method.

git-svn-id: http://yate.null.ro/svn/yate/trunk@4737 acf43c95-373e-0410-b603-e72c3f656dc1

engine/Evaluator.cpp

@@ -488,7 +488,7 @@ void ExpEvaluator::addOpcode(long int value)
     m_opcodes.append(new ExpOperation(value));
 }
 
-ExpOperation* ExpEvaluator::popOne(ObjList& stack) const
+ExpOperation* ExpEvaluator::popOne(ObjList& stack)
 {
     GenObject* o = 0;
     for (ObjList* l = stack.skipNull(); l; l=l->skipNext())

yateclass.h

@@ -4062,6 +4062,13 @@ public:
      */
     void extender(ExpExtender* ext);
 
+    /**
+     * Pops an operand off an evaluation stack
+     * @param stack Evaluation stack to remove the operand from
+     * @return Operator removed from stack, NULL if stack underflow
+     */
+    static ExpOperation* popOne(ObjList& stack);
+
 protected:
     /**
      * Helper method to skip over whitespaces
@@ -4182,13 +4189,6 @@ protected:
      */
     void addOpcode(Opcode oper, const String& name, long int value = 0);
 
-    /**
-     * Pops an operand off the evaluation stack
-     * @param stack Evaluation stack to remove the operand from
-     * @return Operator removed from stack, NULL if stack underflow
-     */
-    ExpOperation* popOne(ObjList& stack) const;
-
     /**
      * Try to apply simplification to the expression
      * @return True if the expression was simplified