I Couldn't i use list iterator inside a constant function.

[vishnu vardhan K S]

Hi,

I couldn't use List iterator in side a constant function. if i use like this given below

Buffer& ArqFeedbackMessage::encodeArqFeedbackMessage() const
   {
 
      Buffer* encodedMsg = new Buffer();
      *encodedMsg << mmt;
      list<ArqFeedBackIE>::iterator i;
      for(i=arqFeedBackIE.begin();i != (const_cast)arqFeedBackIE.end()); ++i)
    {
        encodedMsg->writeBuffer(((ArqFeedBackIE)(*i)).encodeArqFeedBackIE());
    }
 
      encodedMsg->flip();
      encodedMsg->rewind();
      return  *encodedMsg;
  }

I am getting this error:-

error C2679: binary '=' : no operator found which takes a right-hand operand of type 'std::list<_Ty>::const_iterator' (or there is no acceptable conversion)
with
[
_Ty=ArqFeedBackIE
]


plz help how to use a list inside a constant function.

[Ganon11]

Buffer& ArqFeedbackMessage::encodeArqFeedbackMessage() const
   {
 
      Buffer* encodedMsg = new Buffer();
      *encodedMsg << mmt;
      list<ArqFeedBackIE>::iterator i;
      for(i=arqFeedBackIE.begin();i != (const_cast)arqFeedBackIE.end()); ++i) // Here!
    {
        encodedMsg->writeBuffer(((ArqFeedBackIE)(*i)).encodeArqFeedBackIE());
    }
 
      encodedMsg->flip();
      encodedMsg->rewind();
      return  *encodedMsg;
  }

I think there is a problem in the start of your for... loop. You have an iterator to a list of ArqFeedBackIE objects, but you try and initialize it to an arqFeedBackIE. I don't know if this is a type or if you have a list called arqFeedBackIE (which is probably a bad naming idea), but I suspect this is the problem.