[SOLVED] vector<T>::iterator return type

gothrog · 01-21-2011, 03:55 PM

Hi,

I'm trying to write some code that involves creating a function to return a vector iterator.

I'm not sure what is wrong.

Code:

template <typename T> class VectorTemplate
{
   public:

      VectorTemplate()
      {
         pthread_mutex_init(&m_tLock, NULL);
         pthread_cond_init(&m_ReadyEvent, NULL);
              m_maxVectorSize = DEFAULT_VECTOR_SIZE;
         testStr = "Test Hello";
      }

......................

      vector<T>::iterator getBegin()
      {
         return m_theVector.begin();
      }

Error:

Code:

VectorTemplate.h:140: error: type ?std::vector<T, std::allocator<_CharT> >? is not derived from type ?VectorTemplate<T>?
VectorTemplate.h:140: error: expected ?;? before ?getBegin?

Mike

savotije · 01-21-2011, 07:04 PM

What is declaration of m_theVector?

ta0kira · 01-21-2011, 11:42 PM

First of all, you need typename before vector<T>::iterator. The error occurs before the function body is even looked at, so this might be your only problem.
Kevin Barry

gothrog · 01-22-2011, 05:06 PM

savotije - it is a vector.
ta0kira - I thought that it just needs to be in the class to use the typename T already stated.

Code:

template <typename T> class VectorTemplate
{
   public:

      VectorTemplate()
      {
         pthread_mutex_init(&m_tLock, NULL);
         pthread_cond_init(&m_ReadyEvent, NULL);
              m_maxVectorSize = DEFAULT_VECTOR_SIZE;
         testStr = "Test Hello";
      }

......................

      vector<T>::iterator getBegin()
      {
         return m_theVector.begin();
      }

......................

   private:

      // The actual vector
      vector<T>       m_theVector;

......................

};

gothrog · 01-22-2011, 06:17 PM

ta0kira - thanks, I should have taken that more literally.

Fixed:
typename vector<T>::iterator getBegin()