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Old 01-21-2011, 03:55 PM   #1
gothrog
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Registered: Jun 2004
Distribution: Yellow Dog, Fedora, RedHat, Centos, Ubuntu, Suse Linux
Posts: 106

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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

Last edited by gothrog; 01-21-2011 at 03:57 PM.
 
Old 01-21-2011, 07:04 PM   #2
savotije
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Registered: Oct 2010
Location: Serbia (Europe)
Distribution: Slackware 13.1
Posts: 97

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What is declaration of m_theVector?
 
Old 01-21-2011, 11:42 PM   #3
ta0kira
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Registered: Sep 2004
Distribution: FreeBSD 9.1, Kubuntu 12.10
Posts: 3,078

Rep: Reputation: Disabled
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
 
1 members found this post helpful.
Old 01-22-2011, 05:06 PM   #4
gothrog
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Registered: Jun 2004
Distribution: Yellow Dog, Fedora, RedHat, Centos, Ubuntu, Suse Linux
Posts: 106

Original Poster
Rep: Reputation: 15
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;

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

};
 
Old 01-22-2011, 06:17 PM   #5
gothrog
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Registered: Jun 2004
Distribution: Yellow Dog, Fedora, RedHat, Centos, Ubuntu, Suse Linux
Posts: 106

Original Poster
Rep: Reputation: 15
ta0kira - thanks, I should have taken that more literally.

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


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