Thread: Need help with FileI/O and Linked lists.

Totally stuck! I can enter and save info fine(the program only hadnles First names right now, as a test. However, the load function fails.

Ex.
INPUT

Joe

Shmoe

it reads out...
#0
Joe
(it then saves)
#1
Shmoe
(It then Saves)
(The program breaks to menu)
I press L for the login function

it outputs JoeSchmoe as one line, and no matter what I do, I cannot get it to stop reading and outputting the entire file as a single line of text. Any help would be appreciated, the code is below.

Code:

#include <stdlib.h>
#include <iostream.h>
#include <fstream.h>
#include <conFX2.h>
#include <apstring.h>
#include <apstring.cpp>
#include <time.h>

typedef struct Save
{
	char SaveFname[12];
}data;
typedef struct Student
{
	int UserID;
	char Fname[12];
	char Sname[12];
	int SepID;
	
} astudent;

struct Users
{
	Student user;
	Users *next;
}Userrecord;
//userrecord->user.UserID
//Userfile subject[25];
//Userfile tsubject;

//Function Prototypes
data savestudent[25];
data saveAstudent;
void NewUser(int i,Users* &head, Users* &current_list);
void Login(int i,Users* &head);
void Save(Users* &head,int i);

//done



void NewUser(int i,Users* &head, Users* &current_list)
{
	char cho;
	int endloop=0;
	//apstring Fname; 
	//apstring Sname;
	 //ID;
	Users *list = new Users, *current_address, *previous_address;
	current_list=list;
	cout << "Welcome to the User creation Function"<<endl;
	cout << "Please answer the following questions."<<endl;
	for (;; list = list->next) 
	{
		//add previous addresses etc
		cout <<"What is your first name? " <<endl;
		//cout<<endl;
		
		cin.getline(list->user.Fname,12);
		cout <<"\n";
		//cout << list->user.Fname<<endl;
		cout << "Now, your last name"<<endl;
		cin.getline(list->user.Sname,12);
		cout <<"\n";
		cout << "Finally, enter your ID"<<endl;
		list->user.UserID=rand();
		cout <<"\n"<<"This User has been assigned an ID: "<< list->user.UserID<<"Please remember this number if you wish access this user."<<endl;
		cout <<"Would you like to make a new User?[Y/N]"<<endl;
		previous_address=current_address;
		i++;
		cho=getch();
	if (cho=='n')
	{
		//endloop=1;
		list = previous_address->next = NULL;
		//delete current_address;
		break;
		
	}
	else
	{
		cout << " Preparing for new entry" <<endl;
		//getch();
		current_address = list->next = new Users;
		//list=list->next;
	}
	}//while(endloop!=1);
	Save(current_list,i);
	 
}
void Save(Users* &head,int i)
{
	
	Users *savelist;
	ofstream outfile;
	outfile.open("Profiles.dat",ios::out| ios::app |ios::binary);
	//savelist=head;
	//int i=0;
	int j =0;
	for(savelist=head;savelist;savelist=savelist=savelist->next)
	{
		cout <<j<<endl;
		strcpy(savestudent[j].SaveFname,savelist->user.Fname);
		//string copy savelist to struct SAVE
		//cout <<j<<endl;
		//outfile << savelist->user.UserID;
		//outfile <<"name 1" <<savestudent[j].SaveFname<<"*";//<<endl;
		//outfile<< savestudent[j].SaveFname <<endl;
		//cout <<"name "<<j<<" :"<<savelist->user.Fname;
		getch();
		outfile<< savestudent[j].SaveFname;// <<endl;
		cout << savestudent[j].SaveFname <<endl;
	//	outfile << savelist->user.Fname;//<<endl;
		 
		j++;
		getch();
		
	}
	//cout << savelist->user.Fname<<endl;
	//clrscr();

	//j=0;
	//cout<< savestudent[j].SaveFname <<endl;
	getch();
	//cout<<"2"<<endl;
	//j=1;
	//cout<< savestudent[j].SaveFname <<endl;
	getch();
	savelist=NULL;
	outfile.close();

	

}
void Login(int i,Users* &head)
{
	cout << "login Function " <<endl;
	Users *loadlist=new Users;
	ifstream infile;
	int j=0;
	cout <<j<<endl;
	infile.open("Profiles.dat",ios::in| ios::app | ios::binary);
	//infile.seekg(ios::beg); 
	do
	{
		//cout <<"brak"<<endl;
		//load info INTO new list
		//infile >> loadlist->user.UserID;
		infile >> savestudent[j].SaveFname;
		cout <<j<<endl;
		//cout << savestudent[j].SaveFname <<endl;
		getch();
		strcpy(loadlist->user.Fname,savestudent[j].SaveFname);
		cout <<j<<endl;
	
		cout << loadlist->user.Fname <<endl;
		//infile >> loadlist->user.Sname;
		cout << " where do I crash??" <<endl;
		loadlist=loadlist->next;
			j++;
		cout << " where do I crash??" <<endl;
		
	}while(j==1);
	cout << " Do I break the loop? " <<endl;
	infile.close();
	loadlist=head;
	for(loadlist=head;loadlist;loadlist=loadlist=loadlist->next)
	{
		//cout << loadlist->user.UserID <<endl;                                       
		cout << loadlist->user.Fname <<endl;
		//cout << loadlist->user.Sname <<endl;
	}
	
}

char menu()
{
	char ch;
	clrscr();
	gotoxy(15,5);

	gotoxy(25,7);
	cout <<"Would you like to...."<<endl;
	gotoxy(25,8);
	cout <<"[L]ogin"<<endl;
	gotoxy(25,9);
	cout<<"[C]reate a new user"<<endl;
	gotoxy(25,10);
	cout<<"[Q]uit?" <<endl;
	ch = getch();
	//ch=toupper(ch);
	return ch;
}
void process(char ch,Users* &head)
{
//	Users* list;
//	static Users* head;
	static Users* current_list;
	
	const int i=0;
	if(ch == 'c')
		NewUser(i,head,current_list);
	else if(ch == 'l') 
		Login(i,head);
	else if(ch == 's') 
		Save(head,i);

	
}
int main()
{
	char ch;
	Users *head = NULL;
	head = new(Users);
	initscreen();
	settitlebar("Tutorial");
//	textcolor(fgWhite);
//	textbackground(bgBlue);
	clrscr();
	ch = menu();
	while (ch != 'Q')
	{
		process(ch,head);
		ch = menu();
	} 
	uninitscreen();
	return 0;
}