Debugging help please

Hi, my teacher wanted us to test the "class list" with different datatypes and insisted that one of them be user defined, like a struct. and there's errors in this code, and i'm at a loss of what to do. below is the code.

/*
Franz Inbavannan
Assignment 1
DRIVER 1
CIS 200
Instructor: Tsui
*/


#include<stack>
#include<iostream>
#include<string>
using namespace std;

struct anything //to test number list
{
	int value;
	string name;
};
int anynumber; //no. of things in a. 


template<class T>
class list
{
	
 private:
  #define MAXSIZE 50	
	T ar[MAXSIZE];
	int number; // number of things in a.

 public:
	list();

	void getThing(T &n);

	void getint(int &n);

	bool isFull();
	// returns true if the list is full, false otherwise

	bool isEmpty();
	// returns true if the list is empty, false otherwise

	void add(T x);
	/*
	  purpose:      add x to the list
	  precondition: list not full;
	  postcondition: list contains one more thing, i.e. x
	*/

	T remove();
	/* 
	  purpose:      remove one thing from the list
	  precondition: list not empty;
	  postcondition: list contains one less thing and it is returned back
	*/
};


template <class T>
 list<T>::list()
{
	number=0; //Doing so initializes the number of values to zero.
}

/*******************************************************************************************************************************************/
//Function defenition for what happens when the list is full
template <class T>
bool list <T>::isFull()

{	if(number==50)
		{return true;}

	else
		{return false;}
}

/*******************************************************************************************************************************************/
//Function defenition for what happens when the list is empty
template <class T>
bool list <T>::isEmpty()
{  if(number==0)
		{return true;}

	else
		{return false;}
}

/*******************************************************************************************************************************************/
//Function defenition for adding one item, x.
template <class T>
 void list<T>::add(T x)
{ if (isFull() == false)	     			//This limits the number of items that can be added to 50, or MAXSIZE
   
	{ar[number]=x;						   //Assigns new value
	number=number+1; }					   //Changes the number of elements in the array, and gives you updated info
	
}

/*******************************************************************************************************************************************/
//Function defenition for removing one item, x.
 template <class T>
T list<T>::remove()
{
   return ar[number-1];						//Returns last number in array which was removed
  
   number--;							    //Decrease number 1, this way the removed number is no longer able to access.
}

template <class T>
void list<T>::getThing(T &n)
{
	//n.name=a[0].name;
}

template <class T>
void list<T>::getint(int &n)
{
	n=a[0];
}


#include<iostream>
#include<string>

using namespace std;

int main()
{cout<<"1=true"<<endl;
	cout<<"0=false"<<endl<<endl;
	
	
	
	
	
	/*TEST OF STRUCT*/

	list <anything> mylist;
	anything mything1;
	mything1.value=1;
	mything1.name="Hi";
	for(int i=1; i<=50; i++)//A loop so that the value1 itself can be addded to the array 50 times.
		{ 
			mylist.add(mything1);
			mylist.getThing(mything1);
	    }

	cout<<"After 'Hi' has been added to the struct, we call isEmpty and it returns: "<<mylist.isEmpty<<endl<<endl;







	//The below is for testing..bool type functions isEmpty, and isFull
	
	
	/****************************************************************************************************************************************/
	list <int> FX;
		int value1=7;
	cout<<"A list by the name of \"FX\" was created \n and when the function 'isEmpty' is called, it returns : "<<FX.isEmpty()<<endl<<endl<<endl;
    //The value that is expected is 1, and that's what we get. 
		list <int> FM;
	for(int i=1; i<=50; i++)//A loop so that the value1 itself can be addded to the array 50 times.
		{ 
			FM.add(value1);
	    }


	cout<<"50 of value1 have been added to ar, and when the function 'isFull' is called, it returns: "<<FM.isFull()<<endl<<endl<<endl;

	//Expected value: 1
	//Returned value: 1; the isFull functions works properly
	
	
	
	/*****************************************************************************************************************************************/
	FX.add(value1);

	cout<<"The int \"7\" was added to list \"FX.\" \n Now isEmpty returns: "<<FX.isEmpty()<<endl<<endl;
	//The expeced value is 0, which is what is returned.
   
   
	cout<<"The 'remove' function is called and the value it returns is "<<FX.remove()<<endl<<"The last element in the array."<<endl<<endl;
	//Expected value to be returned is 7, and that's what we get.

	
	cout<<"Now, the function isEmpty is called and the value it returns is "<<FM.isEmpty()<<endl;

	cout<<"IT WORKS!"<<endl;



	cout<<endl<<endl<<endl<<"TEST PART 2"<<endl<<endl<<endl;

	////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	list <int> XX;
		int value3=5;
	


	cout<<"A list by the name of \"XX\" was created \n and when the function 'isEmpty' is called, it returns : "<<XX.isEmpty()<<endl<<endl<<endl;
    //The value that is expected is 1, and that's what we get. 



	list <int> MM;
	for(int i=1; i<=50; i++)//A loop so that the value1 itself can be addded to the array 50 times.
		{ 
			FM.add(value1);
	    }


	cout<<"50 of value3 have been added to ar, and when the function 'isFull' is called, it returns: "<<FM.isFull()<<endl<<endl<<endl;

	//Expected value: 1
	//Returned value: 1; the isFull functions works properly
	
	
	
	/*****************************************************************************************************************************************/
	XX.add(value3);

	cout<<"The string \"FRANZ\" was added to list \"XX.\" \n Now isEmpty returns: "<<XX.isEmpty()<<endl<<endl;
	//The expeced value is 0, which is what is returned.
   
   
	cout<<"The 'remove' function is called and the value it returns is "<<XX.remove()<<endl<<"The last element in the array."<<endl<<endl;
	//Expected value to be returned is Franz, and that's what we get.

	
	cout<<"Now, the function isEmpty is called and the value it returns is "<<MM.isEmpty()<<endl;

	cout<<"IT WORKS!"<<endl;
	system("pause");
	return 0;
}

Albatross (4553)

Sorry, but what are those errors? The only two I got were at lines 149 (read it and you'll see what happened) and 120 (another one you'll realize when you read it).

I see a potential redefinition error... be careful with your naming when you use namespaces... in <list> there's another class template called list...

-Albatross

darxknight (2)

thanks, i was just missing some parantheses i guess. Syntax errors. next time i'll specify where im gettting errors.

Topic archived. No new replies allowed.

C++

Forum

Debugging help please