ok this is a class exercise.
(I am quite sure that there are some logic errors dealing with the pointer I haven't gotten that far yet)
How do I declare a new instance of the class nodeType? I have tried all sorts of things. I never did fully understand templates we didn't get much experience with them in my last class.
There have some epic fails in there somewhere that I have missed but I am to frustrated currently to find them.
The instructions
Quote:
In the is chapter the, the class to implement the nodes of a linked list is defined as a struct. the following rewrites the definition of the struct nodeType so that is is declared as a class and the member variables are private:
PHP Code:
#ifndef H_NodeType
#define H_NodeType
#include <iostream>
using namespace std;
template <class Type>
class nodeType
{
public:
const nodeType<Type>& operator=(const nodeType<Type>&);
//Overload the assignment operator.
void setInfo(const Type& elem);
//Function to set the info of the node.
//Postcondition: info = elem;
Type getInfo() const;
//Function to return the info of the node.
//Postcondition: The value of info is returned.
void setLink(nodeType<Type> *ptr);
//Function to set the link of the node.
//Postcondition: link = ptr;
nodeType<Type>* getLink() const;
//Function to return the link of the node.
//Postcondition: The value of link is returned.
nodeType();
//Default constructor
//Postcondition: link = NULL;
nodeType(const Type& elem, nodeType<Type> *ptr);
//Constructor with parameters
//Sets info point to the object elem points to and
//link is set to point to the object ptr points to.
//Postcondition: info = elem; link = ptr
nodeType(const nodeType<Type> &otherNode);
//Copy constructor
~nodeType();
//Destructor
private:
Type info;
nodeType<Type> *link;
};
|
this is what I have
PHP Code:
#ifndef _NODETYPE_H
#define _NODETYPE_H
#include <iostream>
using namespace std;
template <class Type> class nodeType {
public:
const nodeType<Type>& operator=(const nodeType<Type>&);
//Overload the assignment operator.
void setInfo(const Type& elem);
//Function to set the info of the node.
//Postcondition: info = elem;
Type getInfo() const;
//Function to return the info of the node.
//Postcondition: The value of info is returned.
void setLink(nodeType<Type> *ptr);
//Function to set the link of the node.
//Postcondition: link = ptr;
nodeType<Type>* getLink() const;
//Function to return the link of the node.
//Postcondition: The value of link is returned.
nodeType();
//Default constructor
//Postcondition: link = NULL;
nodeType(const Type& elem, nodeType<Type> *ptr);
//Constructor with parameters
//Sets info point to the object elem points to and
//link is set to point to the object ptr points to.
//Postcondition: info = elem; link = ptr
nodeType(const nodeType<Type> &otherNode);
//Copy constructor
~nodeType();
//Destructor
private:
Type info;
nodeType<Type> *link;
};
template <class Type>
const nodeType<Type>& nodeType<Type>::operator=(const nodeType<Type>& n){
info = n.info;
link = n.link;
}
template <class Type>
void nodeType<Type>::setInfo(const Type& elem){
info = elem;
}
template <class Type>
Type nodeType<Type>::getInfo() const{
return info;
}
template <class Type>
void nodeType<Type>::setLink(nodeType<Type> *ptr){
link = ptr;
}
template <class Type>
nodeType<Type>* nodeType<Type>::getLink() const{
return link;
}
template <class Type>
nodeType<Type>::nodeType(){
link = NULL;
}
template <class Type>
nodeType<Type>::nodeType(const Type& elem, nodeType<Type> *ptr){
info = elem;
link = ptr;
}
template <class Type>
nodeType<Type>::nodeType(const nodeType<Type> &otherNode){
otherNode.setInfo(info);
otherNode.setLink(link);
//return otherNode;
}
//~nodeType::nodeType(){
//}
and in the main file
PHP Code:
#include <stdlib.h>
#include "nodeType.h"
using namespace std;
int main(int argc, char** argv) {
nodeType<Type> first;
nodeType<Type> last;
nodeType<Type> newNode;
first.setLink(newNode);
newNode.setInfo(1);
newNode.setLink(last);
return (EXIT_SUCCESS);
}
Solved:
PHP Code:
nodeType<int> *first = new nodeType<int>;
nodeType<int> *last = new nodeType<int>;
nodeType<int> *newNode = new nodeType<int>;
first->setLink(newNode);
newNode->setInfo(1);
newNode->setLink(last);
I was was frustrated and didn't notice the mega fail.
__________________
DDR != GDDR, DDR2 != GDDR2, DDR3 != GDDR3, DDR4 != GDDR4, DDR5 != GDDR5
So
STOP using the terms interchangeably people
Solved: C++ create a linked list node as a class: HELP
03-16-09
Solved: C++ create a linked list node as a class: HELP
