while compiling i got an exception 13 error. can u help me fix it.
i used turbo c++ on win xp.
i'm a plus two student and haven't gone into an in-depth study of the language.this code is my project 4 boards.
on compiling the code,the error message was as follows:
general protection fault at 0AD7:0A31 ERROR CODE-3A00
ax=3A00,bx=029C,cx=08CA,dx=3A00,di=0002,si=E2DE
ds=069F limit=FFFF segment# 004D C:\TC\BIN\TC.EXE
es=13aF limit=044F segment#
cs=0A07 limit=1D3B segment# 00A9 C:\TC\BIN\TC.EXE
ss=069F limit=FFFF segment# 004D C:\TC\BIB\TC.EXE
error code=3A00 limit=INVL segment#
wen i removd d class Date part of d code,the exception error didn't show up.
the code is as follows:
#include<iostream.h>
#include<conio.h>
#include<fstream.h>
#include<string.h>
#include<ctype.h>
#include<stdio.h>
ifstream flight("Flights.dat",ios::binary);
ifstream hotel("Hotels.dat",ios::binary);
ifstream rail("Rails.dat",ios::binary);
ifstream bus("Bus.dat",ios::binary);
ifstream holiday("Holidays.dat",ios::binary);
ifstream place("Places.dat",ios::binary);
ifstream booking("Booked.dat",ios::binary);
ofstream book("Booked.dat",ios::binary,ios::app);
ifstream read_record("Record.dat",ios::binary);
ofstream write_record("Record.dat",ios::binary,ios::app);
int leave=0;
int destination=0;
int depart_time=0;
int adults=0;
int children=0;
int infants=0;
int j=0;
int c=0;
int duration=0;
float f=0.0;
class Place
{
private:
char name[20];
int code;
public:
void assign()
{
cout<<"Name:";
gets(name);
place.seekg(0,ios::beg);
code=6000+(place.tellg()/sizeof(Place))+1;
}
int get_code()
{
return code;
}
void display()
{
puts(name);
cout<<"("<<code<<")";
}
};
class Date
{
private:
int day;
int month;
int year;
public:
void enter_date();
void copy(Date d);
void display()
{
cout<<day<<"."<<month<<"."<<year;
}
void refresh()
{
day=0;
month=0;
year=0;
}
int get_day()
{
return day;
}
int get_month()
{
return month;
}
int get_year()
{
return year;
}
};
void Date::enter_date()
{
int correct=0;
do{
cout<<"Day:";
cin>>day;
cout<<"Month:";
cin>>month;
cout<<"Year:";
cin>>year;
/* if((day>0)||(day<32)||(month>0)||(month<13)||(year>2009)||(year<2014))
{
if(((month==4)||(month==6)||(month==11)||(month==9))&&(day==31))
{
cout<<"Invalid date.\nPlease re-enter correct date:\n";
continue;
}
else if((month==2)&&(day>28))
{
if((year==2012)&&(day==29))
{
cout<<"Date verified:Valid.\n";
correct=1;
continue;
}
else
{
cout<<"Invalid date.\nPlease re-enter corrcet date:\n";
continue;
}
}
else
{
cout<<"Date verified:Valid.\n";
correct=1;
continue;
}
}
else
{
cout<<"Invalid date.\nPlease re-enter correct date:\n";
continue;
}
}while(correct==0);
} */
void Date::copy(Date d)
{
day=d.get_day();
month=d.get_month();
year=d.get_year();
}
Date date;
class Password
{
private:
char pass[20];
public:
Password()
{
strcpy(pass,"9830182259");
}
void change_pass(Record r);
int compare_pass(char p[20]);
};
void Password::change_pass()
{
char new_pass[20];
cout<<"Enter current password\n";
gets(new_pass);
if(compare_pass(new_pass))
{
cout<<"Enter new password\n";
gets(new_pass);
strcpy(pass,new_pass);
cout<<"Password changed successfully\n";
}
else
cout<<"Invalid password\nAccess Denied!!\n";
}
int Password::compare_pass(char p[20])
{
for(int i=0;i<20;i++)
{
if(pass[i]==p[i])
continue;
else
return 0;
}
return 1;
}
Password *p=new Password();
ofstream write_pass("Password.dat",ios::binary);
write_pass.write((char*)&p,sizeof(p));
class Record
{
private:
Date d;
int code;
int left;
public:
int compare(Record r)
{
if((r.get_date().get_day()==d.get_day())&&(r.get_date().get_month()==d.get_month())&&(r.get_date().get_year()==d.get_year())&&(r.get_code()==code))
return 1;
else
return 0;
}
void get(int a,int b)
{
code=a;
d.copy(date);
left=b;
}
void copy(Record r)
{
d.copy(r.get_date());
code=r.get_code();
left=r.get_left();
}
Date get_date()
{
return d;
}
int get_code()
{
return code;
}
int get_left()
{
return left;
}
};
class Flight
{
private:
int f_code;
char op[20];
int operator_code;
Place from;
Place to;
int time;
int time_code;
int fare;
int economy_seats;
int business_seats;
public:
void check_availability();
void assign()
{
flight.seekg(0,ios::end);
f_code=1000+(flight.tellg()/sizeof(Flight))+1;
cout<<"\nOperator:";
gets(op);
cout<<"\nDeparure:";
from.assign();
cout<<"\nArrival:";
to.assign();
cout<<"\nDeparture time:";
cin>>time;
if(time>500 && time<=1200)
time_code=1;
else if(time>1200 && time<=1800)
time_code=2;
else if(time>1800 && time<=0)
time_code=3;
else
time_code=4;
cout<<"\nFare: Rs.";
cin>>fare;
cout<<"\nEconomy seats:";
cin>>economy_seats;
cout<<"\nBusiness seats:";
cin>>business_seats;
}
int check(int k,int l)
{
if((k==from.get_code())&&(l==to.get_code()))
return f_code;
else
return 0;
}
int get_code()
{
return f_code;
}
int get_time_code()
{
return time_code;
}
int get_fare()
{
return fare;
}
void short_display()
{
cout<<"Flight code:"<<f_code<<"\t";
puts(op);
}
void display()
{
cout<<"Flight code:"<<f_code<<"\t";
puts(op);
cout<<"\nFrom:";
from.display();
cout<<"\nTo:";
to.display();
cout<<"\nDate:";
date.display();
cout<<"\nTime:"<<time<<"\nFare:Rs.";
f=fare*adults*1.0+fare*children*0.5+fare*infants*0.1;
cout<<f<<endl;
}
};
void Flight::check_availability(Record r)
{
Record rec;
r.get(f_code,economy_seats+business_seats);
read_record.seekg(0,ios::beg);
while(read_record)
{
read_record.read((char*)& rec, sizeof(rec));
if(rec.compare(r))
{
r.copy(rec);
break;
}
}
}
class Hotel
{
private:
int h_code;
char name[20];
int star;
Place p;
int rooms;
int avg_daily_rate;
int xtra_perday;
char amenities[200];
public:
void check_availability(Record r);
void assign()
{
hotel.seekg(0,ios::end);
h_code=2000+(hotel.tellg()/sizeof(Hotel))+1;
cout<<"Name:";
gets(name);
cout<<"Star rating:";
cin>>star;
cout<<"Location:";
p.assign();
cout<<"Number of Rooms:";
cin>>rooms;
cout<<"Average daily rate: Rs.";
cin>>avg_daily_rate;
cout<<"Extra per day:Rs:";
cin>>xtra_perday;
cout<<"Amenities:";
gets(amenities);
}
void short_display()
{
puts(name);
cout<<"("<<h_code<<")\t"<<star<<" star\n";
}
void display()
{
puts(name);
cout<<"("<<h_code<<")\n"<<star<<" star\n"<<"Avg daily rate:Rs."<<avg_daily_rate;
cout<<"\nAmenities:";
puts(amenities);
cout<<endl;
}
int get_code()
{
return h_code;
}
int get_location()
{
return p.get_code();
}
};
void Hotel::check_availability(Record r)
{
Record rec;
r.get(h_code,rooms);
read_record.seekg(0,ios::beg);
while(read_record)
{
read_record.read((char*)& rec, sizeof(rec));
if(rec.compare(r))
{
r.copy(rec);
break;
}
}
}
class Rail
{
private:
int r_code;
char train[30];
int seats;
Place from;
Place to;
int time[10];
Place stations[10];
float fare[10];
public:
void assign();
void check_availability(Record r);
int check(int x,int y);
int get_code()
{
return r_code;
}
void short_display()
{
cout<<"Train code:"<<r_code<<"\tName:";
puts(train);
}
};
void Rail::assign()
{
rail.seekg(0,ios::end);
r_code=3000+(rail.tellg()/sizeof(Rail))+1;
cout<<"Train name:\n";
gets(train);
cout<<"\nEnter number of seats:";
cin>>seats;
cout<<"\nStarting location:";
from.assign();
cout<<"\nDestination station:";
to.assign();
cout<<"\nEnter stoppages:";
for(int i=0;i<10;i++)
{
cout<<"\nStation "<<(i+1);
stations[i].assign();
cout<<"\nTime:";
cin>>time[i];
cout<<"\nFare from previous station: Rs.";
cin>>fare[i];
}
}
int Rail::check(int x,int y)
{
int result=0;
int d=0;
if(x==from.get_code())
result=1;
else
{
for(d=0;d<10;d++)
{
if(x==stations[d].get_code())
result=1;
}
}
if(result)
{
result=0;
for(;d<10;d++)
{
if(y==stations[d].get_code())
result=1;
}
if(!result)
{
if(y==to.get_code())
result=1;
}
}
if(result)
return r_code;
else
return 0;
}
void Rail::check_availability(Record r)
{
Record rec;
r.get(r_code,seats);
read_record.seekg(0,ios::beg);
while(read_record)
{
read_record.read((char*)& rec, sizeof(rec));
if(rec.compare(r))
{
r.copy(rec);
break;
}
}
}
class Bus
{
private:
int b_code;
char op[20];
int operator_code;
Place from;
Place to;
Place stoppages[10];
int time[10];
float fare[10];
int seats;
public:
int check(int x,int y);
void check_availability(Record r);
void assign();
int get_code()
{
return b_code;
}
void short_display()
{
cout<<"Bus code:"<<b_code<<"\tOperator:";
puts(op);
}
};
void Bus::assign()
{
bus.seekg(0,ios::end);
b_code=3000+(bus.tellg()/sizeof(Bus))+1;
cout<<"Train name:\n";
gets(op);
cout<<"\nEnter number of seats:";
cin>>seats;
cout<<"\nStarting location:";
from.assign();
cout<<"\nDestination station:";
to.assign();
cout<<"\nEnter stoppages:";
for(int i=0;i<10;i++)
{
cout<<"\nStation "<<i+1;
stoppages[i].assign();
cout<<"\nTime:";
cin>>time[i];
cout<<"\nFare from previous station: Rs.";
cin>>fare[i];
}
}
int Bus::check(int x,int y)
{
int result=0;
int d=0;
if(x==from.get_code())
result=1;
else
{
for(d=0;d<10;d++)
{
if(x==stoppages[d].get_code())
result=1;
}
}
if(result)
{
result=0;
for(;d<10;d++)
{
if(y==stoppages[d].get_code())
result=1;
}
if(!result)
{
if(y==to.get_code())
result=1;
}
}
if(result)
return b_code;
else
return 0;
}
void Bus::check_availability(Record r)
{
Record rec;
r.get(b_code,seats);
read_record.seekg(0,ios::beg);
while(read_record)
{
read_record.read((char*)& rec, sizeof(rec));
if(rec.compare(r))
{
r.copy(rec);
break;
}
}
}
class Booked
{
private:
int ref_no;
int code;
int l;
int dest;
char names[6][20];
float fare;
char credit_card[16];
int conf;
Date d;
int preference;
char e_mail[25];
public:
void display();
int confirm(int k, int l);
int get_reference()
{
return ref_no;
}
};
void Booked::display()
{
cout<<"Reference No.:"<<ref_no<<endl;
cout<<"Travellers:\n";
for(int a=0;a<6;a++)
{
cout<<(a+1)<<". ";
puts(names[a]);
}
cout<<"Total fare- Rs."<<fare;
cout<<"Date:";
d.display();
}
int Booked::confirm(int k, int l)
{
l=leave;
dest=destination;
d.copy(date);
preference=l;
code=k;
k=0;
fare=f;
cout<<"\nPlease enter the names of the travellers(excluding infants):\n";
cout<<"\nWhen done enter 0\n";
do
{
gets(names[k]);
k++;
}while(names[k][0]!='0');
booking.seekg(0,ios::end);
ref_no=7000+(booking.tellg()/sizeof(Booked))+1;
cout<<"\nCredit card number:";
gets(credit_card);
cout<<"e-mail id:\n";
gets(e_mail);
if(k-1!=0) conf=1;
else conf=0;
return conf;
}
class Holiday
{
private:
Place leave;
Place destination;
char theme[20];
int theme_code;
int h_code;
int duration;
float fare;
char description[300];
public:
void assign()
{
holiday.seekg(0,ios::end);
h_code=5000+(holiday.tellg()/sizeof(Holiday))+1;
cout<<"\nDeparture:";
leave.assign();
cout<<"\nDestination:";
destination.assign();
cout<<"\nTheme:";
gets(theme);
cout<<"\nDuration:";
cin>>"duration";
cout<<"\nFare: Rs.";
cin>>fare;'
cout<<"\nDescription:";
gets(description);
}
void short_display()
{
cout<<"Destination:";
p.display();
cout<<"\tCode:"<<h_code;
cout<<"\tDuration:"<<duration<<" days";
}
void display()
{
cout<<"Destination:";
destination.display();
cout<<"\nFlight will be provided from ";
leave.display();
cout<<"\nHoliday theme:";
puts(theme);
cout<<"\nDuration:"<<duration<<" days\nFare: Rs."<<fare<<" per person\nDuration";
}
};
void menu()
{
cout<<"1. Flights"<<endl;
cout<<"2. Hotels"<<endl;
cout<<"3. Railways"<<endl;
cout<<"4. Bus"<<endl;
cout<<"5. Holidays"<<endl;
cout<<"6. Check status"<<endl;
cout<<"7. Login(for authorised personnel only)";
cout<<"8. Exit";
}
void login_menu()
{
cout<<"\n Login menu";
cout<<"1. Add new flight\n";
cout<<"2. Add new hotel\n";
cout<<"3. Add new train\n";
cout<<"4. Add new bus\n";
cout<<"5. Add new holiday\n";
cout<<"6. Add new place\n";
cout<<"7. Change password\n";
cout<<"8. Return to previous menu\n";
cout<<"Enter your option(1-7):";
}
void display_cities()
{
Place p;
j=1;
place.seekg(0);
while(!place)
{
place.read((char*)& p, sizeof(Place));
cout<<j<<".";
p.display();
cout<<endl;
j++;
}
cout<<"Enter the city code:";
}
void read_info(int ch)
{
if(ch!=2||ch!=5)
{
cout<<"Leaving from:\n";
display_cities();
cin>>leave;
}
cout<<"\nGoing to:\n";
display_cities();
cin>>destination;
if(ch!=2)
cout<<"Departure date:";
else
cout<<"Arrival date:";
date.enter_date();
if(ch==1)
{
cout<<"\nChoose departure time\n1. 0500-1200\n2. 1200-1800\n3. 1800-0000\n4. 0000-0500\n";
cin>>depart_time;
}
cout<<"Travellers(upto 6 per booking):\n";
cout<<"Adults(12+):";
cin>>adults;
cout<<"\nChildren(2-11):";
cin>>children;
cout<<"\nInfants(0-2):";
cin>>infants;
}
void holiday_info()
{
cout<<"Destination:";
display_cities();
cin>>destination;
cout<<"\nDuration:\n1.1-4 days\n2.4-7 days\n3.7+ days";
cin>>duration;
}
int search_flight()
{
Flight f;
int a1;
int found=0;
flight.seekg(0);
cout<<"Search results:\n";
while(flight)
{
flight.read((char*)& f, sizeof(Flight));
if((f.check(leave,destination))&&(f.get_time_code()==depart_time))
{
f.short_display();
found=1;
}
}
if(found)
{
cout<<"Enter flight code to get more information:\n";
cin>>a1;
return a1;
}
else
return 0;
}
int search_hotels()
{
Hotel h;
int a2;
int found=0;
while(hotel)
{
hotel.read((char*)& h, sizeof(Hotel));
if(destination==h.get_location())
{
found=1;
h.short_display();
}
}
if(found)
{
cout<<"Enter hotel code to get more information:\n";
cin>>a2;
return a2;
}
else
return 0;
}
int search_rails()
{
Rail r;
int a3;
int found=0;
rail.seekg(0);
while(rail)
{
rail.read((char*)& r,sizeof(Rail));
if(r.check(leave,destination))
{
found=1;
r.short_display();
}
}
if(found)
{
cout<<"Enter train code to get more information:\n";
cin>>a3;
return a3;
}
else
return 0;
}
int search_buses()
{
Bus b;
int a4;
int found=0;
bus.seekg(0);
while(bus)
{
bus.read((char*)& b,sizeof(Bus));
if(b.check(leave,destination))
{
found=1;
b.short_display();
}
}
if(found)
{
cout<<"Enter bus code to get more information:\n";
cin>>a4;
return a4;
}
else
return 0;
}
int search_holiday()
{
Holiday h;
int a5;
int found=0;
holiday.seekg(0);
while(holiday)
{
holiday.read((char*)& h,sizeof(Holiday));
if(h.get_destination()==destination)
{
found=1;
h.short_display();
}
}
if(found)
{
cout<<"Enter holiday code to get more information:\n"
cin>>a5;
return a5;
}
else
return 0;
}
void refresh()
{
leave=0;
destination=0;
date.refresh();
depart_time=0;
adults=0;
children=0;
infants=0;
j=0;
c=0;
duration=0;
}
void book(int code, int choice)
{
int check=0;
char ch;
Record r;
Booked b;
cout<<"\nYou have selected the following ";
switch(choice)
{
case 1: Flight f;
flight.seekg(0,ios::beg);
while(flight)
{
flight.read((char*)& f,sizeof(f));
if(code==f.get_code())
break;
}
cout<<"flight:";
f.display();
cout<<"\nChecking availability\n";
f.check_availability(r);
if(r.get_left()!=0)
{
cout<<"Seats available\n";
check=1;
}
else
cout<<"Sorry! Seats unavailable\n";
break;
case 2: Hotel h;
hotel.seekg(0,ios::beg);
while(hotel)
{
hotel.read((char*)& h,sizeof(h));
if(code==h.get_code())
break;
}
cout<<"hotel:";
h.display();
cout<<"\nChecking availability\n";
h.check_availability(r);
if(r.get_left()!=0)
{
cout<<"Seats available\n";
check=1;
}
else
cout<<"Sorry! Seats unavailable\n";
break;
case 3: Rail rl;
rail.seekg(0,ios::beg);
while(rail)
{
rail.read((char*)& f,sizeof(rl));
if(code==rl.get_code())
break;
}
cout<<"flight:";
rl.display();
cout<<"\nChecking availability\n";
rl.check_availability(r);
if(r.get_left()!=0)
{
cout<<"Seats available\n";
check=1;
}
else
cout<<"Sorry! Seats unavailable\n";
break;
case 4: Bus b;
bus.seekg(0,ios::beg);
while(bus)
{
bus.read((char*)& b,sizeof(b));
if(code==b.get_code())
break;
}
cout<<"bus:";
b.display();
cout<<"\nChecking availability\n";
b.check_availability(r);
if(r.get_left()!=0)
{
cout<<"Seats available\n";
check=1;
}
else
cout<<"Sorry! Seats unavailable\n";
break;
case 5: Holiday h;
holiday.seekg(0,ios::beg);
while(holiday)
{
holiday.read((char*)& h,sizeof(h));
if(code==h.get_code())
break;
}
cout<<"holiday:";
h.display();
cout<<"\nChecking availability\n";
h.check_availability(r);
if(r.get_left()!=0)
{
cout<<"Seats available\n";
check=1;
}
else
cout<<"Sorry! Seats unavailable\n";
break;
}
if(check)
{
cout<<"Confirm this booking?(y/n):";
cin>>ch;
if((ch=='y')||(ch=='Y))
check=b.confirm(code,choice);
if(check)
{
r.update();
cout<<"\nYour booking has been confirmed.\nYpur reference number is:"<<b.get_reference();
book.write((char*)& b,sizf(b));
write_record.seekp(read_record.tellg()-sizeof(r),ios::beg);
write_record.write((char*)& r,sizeof(r));
}
else
cout<<"Unable to confirm booking,";
}
}
void check_status()
{
cout<<"Reference number:";
int n;
cin>>n;
Booked b;
booking.seekg(0,ios::beg);
while(booking)
{
booking.read((char*)& b,sizeof(b));
if(n==b.get_reference())
{
b.display();
break;
}
else
n=0;
}
if(!n)
cout<<"Invalid reference number.\nPlease make sure that the number you have entered is correct.";
}
void login()
{
ofstream get_flight("Flights.dat",ios::binary,ios::app);
ofstream get_hotel("Hotel.dat",ios::binary,ios::app);
ofstream get_rail("Rails.dat",ios::binary,ios::app);
ofstream get_bus("Bus.dat",ios::binary,ios::app);
ofstream get_holiday("Holiday.dat",ios::binary,ios::app);
ofstream get_place("Places.dat",ios::binary,ios::app);
ifstream read_pass("Password.dat",ios::binary);
int choice;
char pass[20];
Password p;
read_pass.read((char*)& p,sizeof(p));
cout<<"Password:";
gets(pass);
if(p.compare_pass(pass))
{
do
{
login_menu();
cin>>choice;
switch(choice)
{
case 1: Flight f;
f.assign();
get_flight.write((char*)& f,sizeof(f));
break;
case 2: Hotel h;
h.assign();
get_hotel.write((char*)& h,sizeof(h));
break;
case 3: Rail r;
r.assign();
get_rail.write((char*)& r,sizeof(r));
break;
case 4: Bus b;
b.assign();
get_bus.write((char*)& b,sizeof(b));
break;
case 5: Holiday h;
h.assign();
get_holiday.write((char*)& h,sizeof(h));
break;
case 6: Place p;
p.assign();
get_place.write((chr*)& p,sizeof(p));
break;
case 7: cout<<"Password:\n";
p.change_pass();
write_pass.write((char*)& p,sizeof(p));
break;
case 8: cout<<"\nExiting...\n";
break;
default:cout<<"\nInvalid option.\nAccess denied.";
}
}while(choice!=7);
}
else
cout<<"Invalid password!!\nAccess denied...";
}
void main()
{
cout<<"Welcome to KHK Travel Agency"<<endl;
int choice;
do{
menu();
cout<<"Enter your option:"<<endl;
cin>>choice;
switch(choice)
{
case 1: cout<<"Booking Flights\n";
read_info(choice);
if(c=search_flight())
{
book(c,choice);
}
else
{
cout<<"Sorry.There does not exist any flight between the destinations you entered.\n";
}
refresh();
break;
case 2: cout<<"Booking Hotels\n";
read_info(choice);
if(c=search_hotels())
{
book(c,choice);
}
else
{
cout<<"Sorry.There does not exist any hotel under our network in the place specified by you.\n";
}
refresh();
break;
case 3: cout<<"Online Railway Reservation\n";
read_info(choice);
if(c=search_rails())
{
book(c,choice);
}
else
{
cout<<"Sorry.No train routes exist between the stations you entered.\n";
}
refresh();
break;
case 4: cout<<"Online Bus Seats Booking\n";
read_info(choice);
if(c=search_buses())
{
book(c,choice);
}
else
{
cout<<"Sorry.No bus routes exist between the places you entered.\n";
}
refresh();
break;
case 5: cout<<"Planning Holidays\n";
holiday_info();
if(c=search_holidays())
{
book(c,choice);
}
else
{
cout<<"Sorry.Our travel agency does not arrange holidays in the city you entered.\n";
}
refresh();
break;
case 6: check_status();
break;
case 7: login();
break;
case 8: cout<<"Thank You for using KHK Travel Agency.\nPlease visit again.\n";
break;
default: cout<<"Invalid input!!\nPlease enter your option again.\n";
}
}while(choice!=7);
}
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