Thread: Problems with deleting a node in a singly linked list

Hey guys I'm finally understanding linked lists to an extent, but I ran into this problem. Everything works fine until I go to delete a node from the list.

Code:

#include <iostream> //for standard i/o
#include <cstddef> //for NULL
#include <iomanip> //for setprecision
#include <string> //for string

using namespace std;

struct Book
{
	string author;
	string title;
	int date;
	float price;
};

struct Node
{
	Book data;
	Node* next;
};

Node* head = NULL; //start of list is NULL
Node* prev;
Node* curr;

void PrintContents(Node* head);
void AddNode(Node* head);
void DeleteNode(Node* head, string targettitle);

int main()
{
	int numBooks;
	string targettitle;

	head = new Node; //create first node in the list
	
	cout << "How many books would you like to enter into the list?: ";
	cin >> numBooks;
	cout << endl;
	cin.ignore(100, '\n');
	system("cls"); //clear screen

	//Enquire for head node
	cout << "Please enter the author of a book (e.g. Stephen King): ";
	getline(cin, head->data.author);
	cin.ignore(100, '\n');

	cout << "Please enter the title of " << head->data.author << "'s book: ";
	getline(cin, head->data.title);
	cin.ignore(100, '\n');

	cout << "Please enter the date of " << head->data.title << "'s publication: ";
	cin >> head->data.date;
	cin.ignore(100, '\n');

	cout << endl;

	cout << "Please enter the price of " << head->data.title << " at print time (e.g. $25.00): $";
	cin >> head->data.price;
	cin.ignore(100, '\n');

	head->next = NULL;

	system("cls");

	for(int i = 0; i < (numBooks - 1); i++)
	{
		Node* temp = head; //assign node to be created to the first node in the list
		temp->next = new Node; //create Node at the start of the list
		temp = temp->next;

		//Enquire for subsequent nodes
		cout << "Please enter the author of a book (e.g. Stephen King): ";
		getline(cin, temp->data.author);
		cin.ignore(100, '\n');

		cout << "Please enter the title of " << temp->data.author << "'s book: ";
		getline(cin, temp->data.title);
		cin.ignore(100, '\n');

		cout << "Please enter the date of " << temp->data.title << "'s publication: ";
		cin >> temp->data.date;
		cin.ignore(100, '\n');

		cout << endl;

		cout << "Please enter the price of " << temp->data.title << " at print time (e.g. $25.00): $";
		cin >> temp->data.price;
		cin.ignore(100, '\n');

		temp->next = NULL;

		cout << endl << endl;

		system("cls");
	}//end for

	cout << "List as originally entered: " << endl << endl;
	PrintContents(head);
	system("pause");
	system("cls");

	AddNode(head);
	cout << "List after a new node is added: " << endl << endl;
	PrintContents(head);
	system("pause");
	system("cls");

	cout << "Please enter the name of the title whose book you will delete: ";
	cin >> targettitle;
	DeleteNode(head, targettitle);
	cout << "List after a node is deleted: " << endl << endl;
	PrintContents(head);
	system("pause");
	system("cls");

	delete head;

	return 0;
}


void PrintContents(Node* head)
{
	Node* temp = head;

	cout << fixed << showpoint << setprecision(2);

	cout << left << setw(20) << "Author" << setw(15) << "Title";
	cout << setw(10) << "Date" << "Price" << endl;
	cout << "--------------------------------------------------" << endl << endl;

	while(temp != NULL)
	{
		cout << left << setw(20) << temp->data.author << setw(15) << temp->data.title;
		cout << setw(10) << temp->data.date << "$" << temp->data.price << endl << endl;

		temp = temp->next; //Traverse
	}	

	cout << endl;
}

void AddNode(Node* head)
{
	Node* temp = head;
	Node* temp2;
	Node* start_ptr = head;

	temp = new Node;

    cout << "Please add another book to the list" << endl << endl;

	cout << "Please enter the author of a book (e.g. Stephen King): ";
	getline(cin, temp->data.author);
	cin.ignore(100, '\n');

	cout << "Please enter the title of " << temp->data.author << "'s book: ";
	getline(cin, temp->data.title);
	cin.ignore(100, '\n');

	cout << "Please enter the date of " << temp->data.title << "'s publication: ";
	cin >> temp->data.date;
	cin.ignore(100, '\n');

	cout << endl;

	cout << "Please enter the price of " << temp->data.title << " at print time (e.g. $25.00): $";
	cin >> temp->data.price;
	cin.ignore(100, '\n');

	temp->next = NULL; 

    if (start_ptr == NULL)
        start_ptr = temp;
    else
	{ 
		temp2 = start_ptr;

		while (temp2->next != NULL)
		         temp2 = temp2->next;
        

		temp2->next = temp;
	}

	system("cls");
}

void DeleteNode(Node* head, string targettitle)
{
	prev = NULL;
	curr = head;

	while((curr != NULL) && (curr->data.title != targettitle));
	{
		prev = curr;
		curr = curr->next;
	}

	prev->next = curr->next;

	delete curr;
}

All is good until I input the title of the book to be deleted and return -- I then get only the cursor at the next line. Is the problem with how I'm using getline()?

Thanks in advance for any help