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gothrog 01-21-2011 03:55 PM
vector<T>::iterator return type
 
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()


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