.. _program_listing_file_arbitrary_DerivedClass.h:

Program Listing for File DerivedClass.h
=======================================

|exhale_lsh| :ref:`Return to documentation for file <file_arbitrary_DerivedClass.h>` (``arbitrary/DerivedClass.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include <typeinfo>
   #include <iostream>
   #include <string>
   #include <exception>
   
   #include <arbitrary/BaseClass.h>
   
   NAMESPACE_BEGIN(arbitrary)
   
   enum CAMERA_STATES {
       CAM_NONE      = (1 << 0),
       CAM_ROTATE    = (1 << 1),
       CAM_TRANSLATE = (1 << 2),
       CAM_SCALE     = (1 << 3)
   };
   
   template <typename T, unsigned int N>
   class DerivedClass : public BaseClass {
   public:
       typedef T SuperParent;
   
       DerivedClass() : BaseClass(N) {}
   
       virtual ~DerivedClass() {}
   
       void virtualMethod() {
           std::cout << "    virtualMethod() current index is [" << current_index << "]." << std::endl;
           current_index++;
           if(current_index >= N) current_index = 0;
       }
   
       bool insertAt(T &item, unsigned int index) {
           if(index >= N) return false;
   
           items[index] = item;
           return true;
       }
   
       const T& itemAt(unsigned int index) {
           if(index >= N) throw std::runtime_error("Invalid index.");
           else return items[index];
       }
   
   protected:
       T items[N];
   
       unsigned int current_index = 0;
   };
   
   template <unsigned int N>
   class DerivedClass<arbitrary::arbitrary_struct, N> : public BaseClass {};
   
   template <>
   class DerivedClass<bool, 2> : public BaseClass {};
   
   NAMESPACE_END(arbitrary)