Thread: Undefined Reference

I'm having problems with Undefined Reference. Posted below is my code:

Code:

/* Stack.h - Stack Specification */
#include <stdlib.h>

#ifndef STACK_H
#define STACK_H
struct StackNode
{
   int entry;
   StackNode *next;

};

class Stack
{
	public:
			Stack();    	
			void push(int data);
   		int pop();
   		int peek();
   		bool IsEmpty();
			void test();
 	private:	
			StackNode *top;   
			int counter; 

};
#endif

and the Stack.cpp file:

Code:

#include <stdlib.h>
#include <iostream.h>
#include "Stack.h"

Stack::Stack ()
{
   counter = 0;
	top = NULL;
}

void Stack :: push(int data)
{
	StackNode *temp = new StackNode;
	temp -> entry = data;
	temp -> next = top;
	top = temp;
	counter++;
}

int Stack :: pop()
{
	int dataHolder;
	
	dataHolder = top -> entry;
	top = top -> next;
	return dataHolder;
}
bool Stack :: IsEmpty()
{
	return (top == NULL);
}

int Stack :: peek()
{
	return top -> entry;
}

void Stack :: test()
{
	cout << "test";
}

and the Test.cpp with the main routine:

Code:

#include <stdlib.h>
#include <iostream.h>
#include "Stack.h"



main ()
{
	Stack tester;
	tester.test();	
}

I keep getting "undefined reference to `Stack::Stack(void)' " errors.
I know I asked this in another thread of mine, but I didn't get much help... any help would be appreciated.

I'm not certain of why this isn't working. But just inline your Stack::Stack() and the problem will go away.

Originally Posted by master5001

I'm not certain of why this isn't working. But just inline your Stack::Stack() and the problem will go away.

I wish I could but I can't... Could it be a problem with how I'm linking files together?

Here is my make file:

Code:

# Makefile for Stack program

all: 	main	

main:	stdlib.h iostream.h Stack.h 
	g++ Test.cpp Stack.cpp

Yes it is a problem with how its linking together, actually. I'll compile your code real quick and see if mine does the same thing.

It compiled for me just fine. Do a make clean or delete all the object files, maybe. Perhaps you have an object that was compiled early on and its mislinking.

g++ *.cpp -o test