Source of getEntry.cpp

Structures and functions

  1: //  Created by Frank M. Carrano and Timothy M. Henry.
  2: //  Copyright (c) 2017 Pearson Education, Hoboken, New Jersey.

  4: template<class ItemType>
  5: ItemType LinkedList<ItemType>::getEntry(int position) const
  6:                                throw(PrecondViolatedExcept)
  7: {
  8:    // Enforce precondition
  9:    bool ableToGet = (position >= 1) && (position <= itemCount);
 10:    if (ableToGet)
 11:    {
 12:       Node<ItemType>* nodePtr = getNodeAt(position);
 13:       return nodePtr –>getItem();
 14:    }
 15:    else
 16:    {
 17:       std::string message = "getEntry() called with an empty list or ";
 18:       message = message + "invalid position.";
 19:       throw(PrecondViolatedExcept(message));
 20:    } // end if
 21: } // end getEntry