Bibliography

Bibliography

1.     Let Us C by Yashavant Kanetkar

2.     Computer Science, C++ by Sumita Arora

3.     The Complete Reference, C++ by Herbert Schildt

4.     Software Engineering by Roger S. Pressman

Testing

Testing

It is integral part of any system’s development life cycle without which the system developed is sure to fail and result in loss of economic and manpower investments besides user’s dissatisfaction and downfall of reputation.

System testing is the stage of implementation, which aims at ensuring that the system works accurately and efficiently before actual operation commences. No program or system design is perfect, communication between the user and the designer is not always complete or clear. All this can result in errors.

Another reason for system testing is its utility as a user oriented vehicle before implementation. The application system is worthless if does not meet user needs, thus the system should be tested to see whether it meets the user requirements.

Testing here is conducted in bottom up approach as follows:

Ø     Module testing: Here testing is done at each module level. Each case has been throughly tested to discover pitfalls.

Ø     System testing: Here testing is done after all the modules have been integrated.

Output

Implementation Screen Shots
Login

Main Menu

Selecting Choice 1 from Main Menu

Selecting Choice 5 from Previous Menu

Selecting Choice 3

Entering Information

Issuing Book

       Student Information

Source Code

//**********************************************************
// PROJECT BOOK LIBRARY
//**********************************************************

//**********************************************************
// INCLUDED HEADER FILES
//**********************************************************

#include <iostream.h>
#include <fstream.h>
#include <process.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <conio.h>
#include <dos.h>


//**********************************************************
// THIS CLASS CONTROL ALL THE FUNCTIONS IN THE MENU
//**********************************************************


class MENU
{
public :
void main_menu(void) ;
void introduction(void) ;
private :
void edit_menu(void) ;
void edit_book(void) ;
void edit_member(void) ;
} ;


//**********************************************************
// THIS CLASS CONTAINS FUNCTIONS RELATED TO BOOKS
//**********************************************************

class BOOK
{
public :
void list(void) ;
char *bookname(int) ;
protected :
void add_new_book(int, char tname[33], char tauthor[26], float, int, int) ;
void update_copies(int, int, int) ;
void modify(int, char[], char[], float) ;
void deletion(void) ;
int  book_found(int) ;
int  bookname_found(char []) ;
int  recordno(int) ;
int  available(int) ;
char *authorname(int) ;
float bookprice(int) ;
int  no_of_copies(int) ;
int  bookcodeof(char[]) ;
void display(int) ;
int  reccount(void) ;
void delete_rec(int) ;
private :
int   bookcode, copies ;
char  name[33], author[26] ;
float price ;
int   avail ;
} ;


//**********************************************************
// THIS CLASS CONTAINS FUNCTIONS RELATED TO MEMBERS
//**********************************************************

class MEMBER
{
public :
void list(void) ;
protected :
void add_mem(int, int, char [], char [], char[], int, int, int) ;
void modify(int, char[], char[], char[]) ;
int  member_found(int) ;
void update_book(int, int, int, int, int) ;
char *membername(int) ;
char *memberphone(int) ;
char *memberaddress(int) ;
int  recordno(int) ;
int  lastcode(void) ;
int  issued(int) ;
int  fine(int) ;
void display(int) ;
void delete_rec(int) ;
private :
int  memcode, bookcode ;
char name[26], phone[10], address[33] ;
int  dd, mm, yy ;   // DATE OF RETURNING THE BOOK //
} ;


//**********************************************************
// THIS IS DERIVED FROM CLASS BOOK & MEMBER AND CONTAINS
// FUNCTIONS FOR WORKING (ISSUE,RETURN,ETC).
//**********************************************************

class WORKING : public BOOK, public MEMBER
{
public :
void issuebook(void) ;
void returnbook(void) ;
void add_book(void) ;
void add_member(void) ;
void modify_book(void) ;
void modify_member(void) ;
void delete_book(void) ;
void delete_member(void) ;
} ;


//**********************************************************
// THIS CLASS CONTAINS FUNCTIONS RELATED DATE & FINE
//**********************************************************

class DATE
{
public :
void extend_date(int,int,int,int) ;
int  diff(int, int, int, int, int, int) ;
int  day, mon, year ;
} ;



//**********************************************************
// FUNCTION TO EXTEND GIVEN DATE BY 15 DAYS
//**********************************************************

void DATE :: extend_date(int d1, int m1, int y1, int days)
{
static int month[] = {31,29,31,30,31,30,31,31,30,31,30,31} ;
for (int i=1; i<=days; i++)
{
d1++ ;
if ((d1 > month[m1-1]) || (y1%4 != 0 && m1 == 2 && d1 > 28))
{
d1 = 1 ;
m1++ ;
}
if (m1 > 12)
{
m1 = 1 ;
y1++ ;
}
}
day  = d1 ;
mon  = m1 ;
year = y1 ;
}


//**********************************************************
// THIS FUNCTION RETURN THE DIFFERENCE BETWEEN TWO GIVEN
// DATES
//**********************************************************

int DATE :: diff(int d1, int m1, int y1, int d2, int m2, int y2)
{
int days = 0 ;
if ((y2<y1) || (y2==y1 && m2<m1) || (y2==y1 && m2==m1 && d2<d1))
return days ;
static int month[] = {31,29,31,30,31,30,31,31,30,31,30,31} ;
while (d1 != d2 || m1 != m2 || y1 != y2)
{
days++ ;
d1++ ;
if ((d1 > month[m1-1]) || (y1%4 != 0 && m1 == 2 && d1 > 28))
{
d1 = 1 ;
m1++ ;
}
if (m1 > 12)
{
m1 = 1 ;
y1++ ;
}
}
return days ;
}


//**********************************************************
// FUNCTION TO DISPLAY MAIN MENU & CONTROL ALL THE FUNCTION
// IN THE MAIN MENU.
//**********************************************************

void MENU :: main_menu(void)
{
char ch ;
while (1)
{
clrscr() ;
gotoxy(29,6) ;
cout <<"B O O K  L I B R A R Y" ;
gotoxy(29,7) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~" ;
gotoxy(30,10) ;
cout <<"1. INTRODUCTION" ;
gotoxy(30,11) ;
cout <<"2. ADD NEW BOOK" ;
gotoxy(30,12) ;
cout <<"3. ADD NEW MEMBER" ;
gotoxy(30,13) ;
cout <<"4. ISSUE BOOK" ;
gotoxy(30,14) ;
cout <<"5. RETURN BOOK" ;
gotoxy(30,15) ;
cout <<"6. LIST OF BOOKS" ;
gotoxy(30,16) ;
cout <<"7. LIST OF MEMBERS" ;
gotoxy(30,17) ;
cout <<"8. EDIT" ;
gotoxy(30,18) ;
cout <<"0. QUIT" ;
gotoxy(30,20) ;
cout <<"Enter your choice : " ;
ch = getche() ;
if (ch == 27)
break ;
else
if (ch == '1')
introduction() ;
else
if (ch == '2')
{
WORKING W ;
W.add_book() ;
}
else
if (ch == '3')
{
WORKING W ;
W.add_member() ;
}
else
if (ch == '4')
{
WORKING W ;
W.issuebook() ;
}
else
if (ch == '5')
{
WORKING W ;
W.returnbook() ;
}
else
if (ch == '6')
{
BOOK B ;
B.list() ;
}
else
if (ch == '7')
{
MEMBER M ;
M.list() ;
}
else
if (ch == '8')
edit_menu() ;
else
if (ch == '0')
break ;
}
}


//**********************************************************
// FUNCTION TO DISPLAY EDIT MENU
//**********************************************************

void MENU :: edit_menu(void)
{
char ch ;
while (1)
{
clrscr() ;
gotoxy(32,9) ;
cout <<"E D I T  M E N U";
gotoxy(32,10) ;
cout <<"~~~~~~~~~~~~~~~~" ;
gotoxy(34,13) ;
cout <<"1. BOOKS" ;
gotoxy(34,14) ;
cout <<"2. MEMBERS" ;
gotoxy(34,15) ;
cout <<"0. EXIT" ;
gotoxy(31,17) ;
cout <<"Enter your choice : " ;
ch = getche() ;
if (ch == 27)
break ;
else
if (ch =='1')
edit_book() ;
else
if (ch == '2')
edit_member() ;
else
if (ch == '0')
break ;
}
}


//**********************************************************
// FUNCTION TO DISPLAY EDIT MENU FOR BOOK & CONTROL
// ALL THE FUNCTION IN THE EDIT MENU.
//**********************************************************

void MENU :: edit_book(void)
{
char ch ;
while (1)
{
clrscr() ;
gotoxy(31,9) ;
cout <<"E D I T  B O O K S";
gotoxy(31,10) ;
cout <<"~~~~~~~~~~~~~~~~~~" ;
gotoxy(34,13) ;
cout <<"1. MODIFY" ;
gotoxy(34,14) ;
cout <<"2. DELETE" ;
gotoxy(34,15) ;
cout <<"0. EXIT" ;
gotoxy(31,17) ;
cout <<"Enter your choice : " ;
ch = getche() ;
if (ch == 27)
break ;
else
if (ch == '1')
{
WORKING W ;
W.modify_book() ;
}
else
if (ch == '2')
{
WORKING W ;
W.delete_book() ;
}
else
if (ch == '0')
break ;
}
}


//**********************************************************
// FUNCTION TO DISPLAY EDIT MENU FOR MEMBERS & CONTROL
// ALL THE FUNCTION IN THE EDIT MENU.
//**********************************************************

void MENU :: edit_member(void)
{
char ch ;
while (1)
{
clrscr() ;
gotoxy(29,9) ;
cout <<"E D I T  M E M B E R S";
gotoxy(29,10) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~" ;
gotoxy(34,13) ;
cout <<"1. MODIFY" ;
gotoxy(34,14) ;
cout <<"2. DELETE" ;
gotoxy(34,15) ;
cout <<"0. EXIT" ;
gotoxy(29,17) ;
cout <<"Enter your choice : " ;
ch = getche() ;
if (ch == 27)
break ;
else
if (ch == '1')
{
WORKING W ;
W.modify_member() ;
}
else
if (ch == '2')
{
WORKING W ;
W.delete_member() ;
}
else
if (ch == '0')
break ;
}
}


//**********************************************************
// FUNCTION TO DISPLAY THE INTRODUCTION FOR THE PROJECT.
//**********************************************************

void MENU :: introduction(void)
{
clrscr() ;
gotoxy(31,5) ;
cout <<"Welcome to Project" ;
textcolor(BLACK+BLINK) ; textbackground(WHITE) ;
gotoxy(33,7) ;
cprintf(" BOOK LIBRARY ") ;
textcolor(LIGHTGRAY) ; textbackground(BLACK) ;
gotoxy(15,10) ;
cout <<"This  project has facility of maintaining  records" ;
gotoxy(15,11) ;
cout <<"of BOOKS and MEMBERS." ;
gotoxy(15,13) ;
cout <<"This  project  can  hold more  than  10,000  books" ;
gotoxy(15,14) ;
cout <<"records." ;
gotoxy(15,16) ;
cout <<"One member can issue one book at a time. If he/she" ;
gotoxy(15,17) ;
cout <<"does  not return book upto 15 days he/she have  to" ;
gotoxy(15,18) ;
cout <<"pay fine of Rs.2/- per day." ;
textcolor(LIGHTGRAY+BLINK) ;
gotoxy(27,24) ;
cprintf("Press any key to continue") ;
textcolor(LIGHTGRAY) ;
getch() ;
}


//**********************************************************
// THIS FUNCTION RETURN 0 IF GIVEN BOOK CODE NOT FOUND
//**********************************************************

int BOOK :: book_found(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int found=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
found = 1 ;
break ;
}
}
file.close() ;
return found ;
}


//**********************************************************
// THIS FUNCTION RETURN 0 IF GIVEN BOOK NAME NOT FOUND
//**********************************************************

int BOOK :: bookname_found(char t1code[33])
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int found=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (!strcmpi(name,t1code))
{
found = 1 ;
break ;
}
}
file.close() ;
return found ;
}


//**********************************************************
// THIS FUNCTION RETURN RECORD NO. FOR THE BOOK CODE
//**********************************************************

int BOOK :: recordno(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int count=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
count++ ;
if (bookcode == tcode)
break ;
}
file.close() ;
return count ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE AVAILABLE COPIES FOR THE GIVEN
// BOOK CODE.
//**********************************************************

int BOOK :: available(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int tavail=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
tavail = avail ;
break ;
}
}
file.close() ;
return tavail ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE NO. OF COPIES FOR THE GIVEN
// BOOK CODE.
//**********************************************************

int BOOK :: no_of_copies(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int tcopies=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
tcopies = copies ;
break ;
}
}
file.close() ;
return tcopies ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE BOOK NAME OF THE GIVEN BOOK
// CODE.
//**********************************************************

char *BOOK :: bookname(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
char tname[33] ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
strcpy(tname,name) ;
break ;
}
}
file.close() ;
return tname ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE AUTHOR NAME OF THE GIVEN BOOK
// CODE.
//**********************************************************

char *BOOK :: authorname(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
char tauthor[26] ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
strcpy(tauthor,author) ;
break ;
}
}
file.close() ;
return tauthor ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE BOOK PRICE OF THE GIVEN BOOK
// CODE.
//**********************************************************

float BOOK :: bookprice(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
float tprice=0.0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
tprice = price ;
break ;
}
}
file.close() ;
return tprice ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE BOOK CODE OF THE GIVEN BOOK
// NAME.
//**********************************************************

int BOOK :: bookcodeof(char t1code[33])
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int tcode=0 ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (!strcmpi(name,t1code))
{
tcode = bookcode ;
break ;
}
}
file.close() ;
return tcode ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE NO. OF THE RECORDS IN THE BOOK
// FILE.
//**********************************************************

int BOOK :: reccount(void)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int count=0 ;
while (file.read((char *) this, sizeof(BOOK)))
count++ ;
file.close() ;
return count ;
}


//**********************************************************
// THIS FUNCTION DELETES THE RECORD OF THE GIVEN BOOK CODE.
//**********************************************************

void BOOK :: delete_rec(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(BOOK)) ;
if ( file.eof() )
break ;
if ( bookcode != tcode )
temp.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
file.open("BOOK.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(BOOK)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION ADD THE RECORD IN THE BOOK FILE
//**********************************************************

void BOOK :: add_new_book(int tcode,char tname[33], char tauthor[26], float tprice, int tcopies, int tavail)
{
fstream file ;
file.open("BOOK.DAT", ios::app) ;
bookcode = tcode ;
strcpy(name,tname) ;
strcpy(author,tauthor) ;
price = tprice ;
copies = tcopies ;
avail = tavail ;
file.write((char *) this, sizeof(BOOK)) ;
file.close() ;
}


//**********************************************************
// THIS FUNCTION UPDATE THE RECORD IN THE BOOK FILE FOR THE
// GIVEN BOOK CODE
//**********************************************************

void BOOK :: update_copies(int tcode, int tcopies, int tavail)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(BOOK)) ;
if ( file.eof() )
break ;
if ( bookcode == tcode )
{
copies = tcopies ;
avail = tavail ;
temp.write((char *) this, sizeof(BOOK)) ;
}
else
temp.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
file.open("BOOK.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(BOOK)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION MODIFY THE RECORD IN THE BOOK FILE FOR THE
// GIVEN BOOK CODE
//**********************************************************

void BOOK :: modify(int tcode, char tname[33], char tauthor[26], float tprice)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(BOOK)) ;
if ( file.eof() )
break ;
if ( bookcode == tcode )
{
strcpy(name,tname) ;
strcpy(author,tauthor) ;
price = tprice ;
temp.write((char *) this, sizeof(BOOK)) ;
}
else
temp.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
file.open("BOOK.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(BOOK)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(BOOK)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION DISPLAY THE RECORD FROM THE BOOK FILE
// FOR THE GIVEN BOOK CODE
//**********************************************************

void BOOK :: display(int tcode)
{
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
while (file.read((char *) this, sizeof(BOOK)))
{
if (bookcode == tcode)
{
gotoxy(5,5) ;
cout <<"Book Code   : " <<bookcode ;
gotoxy(5,7) ;
cout <<"Book Name   : " <<name ;
gotoxy(5,8) ;
cout <<"Author Name : " <<author ;
gotoxy(5,9) ;
cout <<"Price       : Rs." <<price ;
gotoxy(5,10) ;
cout <<"Copies      : " <<price ;
gotoxy(5,11) ;
cout <<"Available   : " <<avail ;
break ;
}
}
file.close() ;
}


//**********************************************************
// THIS FUNCTION DISPLAY THE LIST OF BOOKS.
//**********************************************************

void BOOK :: list(void)
{
clrscr() ;
int row = 6 , found=0, flag=0 ;
char ch ;
gotoxy(33,2) ;
cout <<"LIST OF BOOKS" ;
gotoxy(32,3) ;
cout <<"~~~~~~~~~~~~~~~" ;
gotoxy(1,4) ;
cout <<"CODE  BOOK NAME                        AUTHOR                    PRICE  COPIES" ;
gotoxy(1,5) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ;
fstream file ;
file.open("BOOK.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
while (file.read((char *) this, sizeof(BOOK)))
{
flag = 0 ;
delay(20) ;
found = 1 ;
gotoxy(2,row) ;
cout <<bookcode ;
gotoxy(7,row) ;
cout <<name ;
gotoxy(40,row) ;
cout <<author ;
gotoxy(66,row) ;
cout <<price ;
gotoxy(73,row) ;
cout <<copies ;
textbackground(WHITE) ; textcolor(BLACK) ;
gotoxy(40,row+1) ;
cprintf("STATUS: ") ;
textcolor(BLACK+BLINK) ;
cprintf("%d copies available",avail) ;
textbackground(BLACK) ; textcolor(LIGHTGRAY) ;
if ( row == 22 )
{
flag = 1 ;
row = 6 ;
gotoxy(1,25) ;
cout <<"Press any key to continue or Press <ESC> to exit" ;
ch = getch() ;
if (ch == 27)
break ;
clrscr() ;
gotoxy(33,2) ;
cout <<"LIST OF BOOKS" ;
gotoxy(32,3) ;
cout <<"~~~~~~~~~~~~~~~" ;
gotoxy(1,4) ;
cout <<"CODE  BOOK NAME                        AUTHOR                    PRICE  COPIES" ;
gotoxy(1,5) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ;
}
else
row = row + 2 ;
}
if (!found)
{
gotoxy(5,10) ;
cout <<"\7Records not found" ;
}
if (!flag)
{
gotoxy(1,25) ;
cout <<"Press any key to continue..." ;
getche() ;
}
file.close () ;
}


//**********************************************************
// THIS FUNCTION RETURN 0 IF THE GIVEN MEMBER CODE NOT FOUND
//**********************************************************

int MEMBER :: member_found(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int found=0 ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
found = 1 ;
break ;
}
}
file.close() ;
return found ;
}


//**********************************************************
// THIS FUNCTION RETURN 0 IF THE MEMBER HAVE NOT ISSUED ANY
// BOOK.
//**********************************************************

int MEMBER :: issued(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int missue=0 ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
missue = bookcode ;
break ;
}
}
file.close() ;
return missue ;
}


//**********************************************************
// THIS FUNCTION CALCULATE AND RETURN FINE FOR THE GIVEN
// MEMBER CODE.
//**********************************************************

int MEMBER :: fine(int mcode)
{
DATE D ;
int d1, m1, y1 ;
struct date d;
getdate(&d);
d1 = d.da_day ;
m1 = d.da_mon ;
y1 = d.da_year ;
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int days, t_fine ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
days = D.diff(dd,mm,yy,d1,m1,y1) ;
t_fine = days * 2 ;
break ;
}
}
file.close() ;
return t_fine ;
}


//**********************************************************
// THIS FUNCTION RETURN THE LAST CODE OF THE MEMBER FILE.
//**********************************************************

int MEMBER :: lastcode(void)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int mcode=0 ;
while (file.read((char *) this, sizeof(MEMBER)))
mcode = memcode ;
file.close() ;
return mcode ;
}


//**********************************************************
// THIS FUNCTION RETURNS MEMBER NAME OF THE GIVEN MEMBER
// CODE.
//**********************************************************

char *MEMBER :: membername(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
char mname[26] ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
strcpy(mname,name) ;
break ;
}
}
file.close() ;
return mname ;
}


//**********************************************************
// THIS FUNCTION RETURNS MEMBER PHONE OF THE GIVEN MEMBER
// CODE.
//**********************************************************

char *MEMBER :: memberphone(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
char mphone[10] ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
strcpy(mphone,phone) ;
break ;
}
}
file.close() ;
return mphone ;
}


//**********************************************************
// THIS FUNCTION RETURNS MEMBER ADDRESS OF THE GIVEN MEMBER
// CODE.
//**********************************************************

char *MEMBER :: memberaddress(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
char maddress[33] ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
strcpy(maddress,address) ;
break ;
}
}
file.close() ;
return maddress ;
}


//**********************************************************
// THIS FUNCTION RETURNS RECORD NO. OF THE GIVEN MEMBER
// CODE.
//**********************************************************

int MEMBER :: recordno(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
int count=0 ;
while (file.read((char *) this, sizeof(MEMBER)))
{
count++ ;
if (memcode == mcode)
break ;
}
file.close() ;
return count ;
}


//**********************************************************
// THIS FUNCTION DELETE RECORD FOR THE GIVEN MEMBER CODE.
//**********************************************************

void MEMBER :: delete_rec(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(MEMBER)) ;
if ( file.eof() )
break ;
if ( memcode != mcode )
temp.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
file.open("MEMBER.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(MEMBER)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION UPDATE RECORD FOR THE GIVEN MEMBER CODE.
//**********************************************************

void MEMBER :: update_book(int mcode, int tcode, int d1, int m1, int y1)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(MEMBER)) ;
if ( file.eof() )
break ;
if ( memcode == mcode )
{
bookcode = tcode ;
dd = d1 ;
mm = m1 ;
yy = y1 ;
temp.write((char *) this, sizeof(MEMBER)) ;
}
else
temp.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
file.open("MEMBER.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(MEMBER)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION MODIFY RECORD FOR THE GIVEN MEMBER CODE.
//**********************************************************

void MEMBER :: modify(int mcode, char mname[26], char mphone[10], char maddress[33])
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
fstream temp ;
temp.open("temp.dat", ios::out) ;
file.seekg(0,ios::beg) ;
while ( !file.eof() )
{
file.read((char *) this, sizeof(MEMBER)) ;
if ( file.eof() )
break ;
if ( memcode == mcode )
{
strcpy(name,mname) ;
strcpy(phone,mphone) ;
strcpy(address,maddress) ;
temp.write((char *) this, sizeof(MEMBER)) ;
}
else
temp.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
file.open("MEMBER.DAT", ios::out) ;
temp.open("temp.dat", ios::in) ;
temp.seekg(0,ios::beg) ;
while ( !temp.eof() )
{
temp.read((char *) this, sizeof(MEMBER)) ;
if ( temp.eof() )
break ;
file.write((char *) this, sizeof(MEMBER)) ;
}
file.close() ;
temp.close() ;
}


//**********************************************************
// THIS FUNCTION ADD RECORD IN THE FILE FOR THE GIVEN
// MEMBER CODE.
//**********************************************************

void MEMBER :: add_mem(int mcode, int bcode, char mname[26], char maddress[33], char mphone[10], int d1, int m1, int y1)
{
fstream file ;
file.open("MEMBER.DAT", ios::app) ;
memcode = mcode ;
bookcode = bcode ;
strcpy(name,mname) ;
strcpy(address,maddress) ;
strcpy(phone,mphone) ;
dd = d1 ;
mm = m1 ;
yy = y1 ;
file.write((char *) this, sizeof(MEMBER)) ;
file.close() ;
}


//**********************************************************
// THIS FUNCTION DISPLAY THE RECORD FOR THE GIVEN MEMBER
// CODE.
//**********************************************************

void MEMBER :: display(int mcode)
{
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
while (file.read((char *) this, sizeof(MEMBER)))
{
if (memcode == mcode)
{
gotoxy(5,3) ;
cout <<"Member Code # " <<mcode ;
gotoxy(5,4) ;
cout <<"~~~~~~~~~~~~~~~~~" ;
gotoxy(5,6) ;
cout <<"Name    : " <<name ;
gotoxy(5,7) ;
cout <<"Phone   : " <<phone ;
gotoxy(5,8) ;
cout <<"Address : " <<address ;
break ;
}
}
file.close() ;
}


//**********************************************************
// THIS FUNCTION DISPLAY THE LIST OF THE MEMBERS
//**********************************************************

void MEMBER :: list(void)
{
clrscr() ;
BOOK B ;
int row = 6 , found=0, flag=0 ;
char ch ;
gotoxy(32,2) ;
cout <<"LIST OF MEMBERS" ;
gotoxy(31,3) ;
cout <<"~~~~~~~~~~~~~~~~~" ;
gotoxy(1,4) ;
cout <<"CODE  BOOK CODE   NAME                         PHONE" ;
gotoxy(1,5) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ;
fstream file ;
file.open("MEMBER.DAT", ios::in) ;
file.seekg(0,ios::beg) ;
while (file.read((char *) this, sizeof(MEMBER)))
{
flag = 0 ;
delay(20) ;
found = 1 ;
gotoxy(2,row) ;
cout <<memcode ;
gotoxy(10,row) ;
cout <<bookcode ;
gotoxy(19,row) ;
cout <<name ;
gotoxy(48,row) ;
cout <<phone ;
textbackground(WHITE) ; textcolor(BLACK) ;
gotoxy(7,row+1) ;
if (bookcode == 0)
cprintf("BOOK NAME: (Not Issued)") ;
else
{
cprintf("BOOK NAME: %s",B.bookname(bookcode)) ;
gotoxy(42,row+1) ;
cprintf("Date of return: ") ;
textcolor(BLACK+BLINK) ;
cprintf("%d/%d/%d",dd,mm,yy) ;
}
textbackground(BLACK) ; textcolor(LIGHTGRAY) ;
if ( row == 22 )
{
flag = 1 ;
row = 6 ;
gotoxy(1,25) ;
cout <<"Press any key to continue or Press <ESC> to exit" ;
ch = getch() ;
if (ch == 27)
break ;
clrscr() ;
gotoxy(32,2) ;
cout <<"LIST OF MEMBERS" ;
gotoxy(31,3) ;
cout <<"~~~~~~~~~~~~~~~~~" ;
gotoxy(1,4) ;
cout <<"CODE  BOOK CODE   NAME                         PHONE" ;
gotoxy(1,5) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ;
}
else
row = row + 2 ;
}
if (!found)
{
gotoxy(5,10) ;
cout <<"\nRecords not found" ;
}
if (!flag)
{
gotoxy(1,25) ;
cout <<"Press any key to continue..." ;
getche() ;
}
file.close () ;
}


//**********************************************************
// THIS FUNCTION GIVES DATA TO ADD RECORD IN THE BOOK FILE.
//**********************************************************

void WORKING :: add_book(void)
{
if (!reccount())  // MEMBER FUNCTION OF BOOK
{
add_new_book(0,"null","null",0.0,0,0) ;
BOOK::delete_rec(0) ;
}
char ch ;
int tcode, tcopies, tavail ;
char tname[33], tauthor[26] ;
float tprice=0.0 ;
do
{
int found=0, valid=0 ;
int tc ;
float t2=0.0 ;
char t[10], t1[10] ;
clrscr() ;
gotoxy(29,3) ;
cout <<"ADDITION OF THE BOOKS" ;
gotoxy(29,4) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~" ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,25) ;
cout <<"Enter code no. of the book" ;
gotoxy(5,5) ;
cout <<"Code no. " ;
gets(t) ;
tc = atoi(t) ;
tcode = tc ;
if (tcode == 0)
return ;
if (book_found(tcode))
{
found = 1 ;
gotoxy(19,8) ;
cout <<bookname(tcode) ;
gotoxy(19,9) ;
cout <<authorname(tcode) ;
gotoxy(22,10) ;
cout <<bookprice(tcode) ;
}
gotoxy(5,8) ;
cout <<"Book Name   : " ;
gotoxy(5,9) ;
cout <<"Author Name : " ;
gotoxy(5,10) ;
cout <<"Price       : Rs." ;
gotoxy(5,12) ;
cout <<"Copies      : " ;
valid = 0 ;
while (!valid && !found)
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the name of the book" ;
gotoxy(19,8) ; clreol() ;
gets(tname) ;
strupr(tname) ;
if (tname[0] == '0')
return ;
if (strlen(tname) < 1 || strlen(tname) > 32)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\nEnter correctly (Range: 1..32)" ;
getch() ;
}
}
valid = 0 ;
while (!valid && !found)
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the author's name of the book" ;
gotoxy(19,9) ; clreol() ;
gets(tauthor) ;
strupr(tauthor) ;
if (tauthor[0] == '0')
return ;
if (strlen(tauthor) < 1 || strlen(tauthor) > 25)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..25)" ;
getch() ;
}
}
valid = 0 ;
while (!valid && !found)
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the price of the book" ;
gotoxy(22,10) ; clreol() ;
gets(t1) ;
t2 = atof(t1) ;
tprice = t2 ;
if (t1[0] == '0')
return ;
if (tprice < 1 || tprice > 9999)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly" ;
getch() ;
}
}
valid = 0 ;
while (!valid)
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter no. of copies of book to be added" ;
gotoxy(19,12) ; clreol() ;
gets(t) ;
tc = atoi(t) ;
tcopies = tc ;
if (t[0] == '0')
return ;
if (tcopies < 1 || tcopies > 50)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly" ;
getch() ;
}
}
tavail = available(tcode) + tcopies ;
tcopies = no_of_copies(tcode) + tcopies ;
gotoxy(5,25) ; clreol() ;
do
{
gotoxy(5,15) ; clreol() ;
cout <<"Do you want to save (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
} while (ch != 'Y' && ch != 'N') ;

if (ch == 'Y')
{
if (found)
update_copies(tcode,tcopies,tavail) ;
else
add_new_book(tcode,tname,tauthor,tprice,tcopies,tavail) ;
}
do
{
gotoxy(5,17) ; clreol() ;
cout <<"Do you want to add more (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
} while (ch != 'Y' && ch != 'N') ;
} while (ch == 'Y') ;
}


//**********************************************************
// THIS FUNCTION GIVES DATA TO ADD RECORD IN THE MEMBER FILE
//**********************************************************

void WORKING :: add_member(void)
{
char ch ;
int mcode, bcode ;
char mname[26], mphone[10], maddress[33] ;
int d1, m1, y1 ;
mcode = lastcode() ;
if (mcode == 0)
{
add_mem(mcode,0,"null","null","null",0,0,0) ;
MEMBER::delete_rec(mcode) ;
}
mcode++ ;
do
{
int valid=0 ;
clrscr() ;
gotoxy(28,3) ;
cout <<"ADDITION OF THE MEMBERS" ;
gotoxy(28,4) ;
cout <<"~~~~~~~~~~~~~~~~~~~~~~~" ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,7) ;
cout <<"Member Code # " <<mcode ;
gotoxy(5,8) ;
cout <<"~~~~~~~~~~~~~~~~~" ;
gotoxy(5,10) ;
cout <<"Name    : " ;
gotoxy(5,12) ;
cout <<"Phone   : " ;
gotoxy(5,14) ;
cout <<"Address : " ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the name of the New Member" ;
gotoxy(15,10) ; clreol() ;
gets(mname) ;
strupr(mname) ;
if (mname[0] == '0')
return ;
if (strlen(mname) < 1 || strlen(mname) > 25)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..25)" ;
getch() ;
}
} while (!valid) ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter Phone no. of the Member or Press <ENTER> for none" ;
gotoxy(15,12) ; clreol() ;
gets(mphone) ;
if (mphone[0] == '0')
return ;
if ((strlen(mphone) < 7 && strlen(mphone) > 0) || (strlen(mphone) > 9))
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly" ;
getch() ;
}
} while (!valid) ;
if (strlen(mphone) == 0)
strcpy(mphone,"-") ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the address of the New Member" ;
gotoxy(15,14) ; clreol() ;
gets(maddress) ;
strupr(maddress) ;
if (maddress[0] == '0')
return ;
if (strlen(maddress) < 1 || strlen(maddress) > 32)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..32)" ;
getch() ;
}
} while (!valid) ;
gotoxy(5,25) ; clreol() ;
do
{
gotoxy(5,17) ; clreol() ;
cout <<"Do you want to save (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'Y')
{
bcode = 0 ;
d1 = 0 ;
m1 = 0 ;
y1 = 0 ;
add_mem(mcode,bcode,mname,maddress,mphone,d1,m1,y1) ;
mcode++ ;
}
do
{
gotoxy(5,19) ; clreol() ;
cout <<"Do you want to add more (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
} while (ch == 'Y') ;
}


//**********************************************************
// THIS FUNCTION ISSUES THE BOOK
//**********************************************************

void WORKING :: issuebook(void)
{
BOOK B ;
MEMBER M ;
DATE D ;
char t1code[33], ch ;
int t2code=0, tcode=0, mcode=0 ;
int valid ;
int d1, m1, y1 ;
struct date d;
getdate(&d);
d1 = d.da_day ;
m1 = d.da_mon ;
y1 = d.da_year ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(5,2) ;
cout <<"Date : " <<d1 <<"/" <<m1 <<"/" <<y1 ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,5) ;
cout <<"Enter Code or Name of the Book to be issued" ;
gotoxy(5,6) ;
cout <<"                  or                       " ;
gotoxy(5,7) ;
cout <<"Press <ENTER> for help  " ;
gets(t1code) ;
if (t1code[0] == '0')
return ;
if (strlen(t1code) == 0)
B.list() ;
else
break ;
}
t2code = atoi(t1code) ;
tcode = t2code ;
if ((tcode == 0 && !bookname_found(t1code)) || (tcode != 0 && !book_found(tcode)))
{
valid = 0 ;
gotoxy(5,10) ;
cout <<"\7Record not found" ;
gotoxy(5,11) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
if (tcode == 0)
tcode = bookcodeof(t1code) ;
if (!available(tcode))
{
gotoxy(5,10) ;
cout <<"\7Sorry! Book (" <<bookname(tcode) <<") is not available" ;
gotoxy(5,11) ;
cout <<"Kindly issue any other Book" ;
gotoxy(5,12) ;
cout <<"See List of Books" ;
getch() ;
return ;
}
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,2) ;
cout <<"Date : " <<d1 <<"/" <<m1 <<"/" <<y1 ;
gotoxy(5,5) ;
cout <<"Book Name: " <<bookname(tcode) ;
gotoxy(5,7) ;
cout <<"Enter Code no. of the Member" ;
gotoxy(5,8) ;
cout <<"            or              " ;
gotoxy(5,9) ;
cout <<"Press <ENTER> for help  " ;
gets(t1code) ;
if (t1code[0] == '0')
return ;
if (strlen(t1code) == 0)
M.list() ;
else
break ;
}
t2code = atoi(t1code) ;
mcode = t2code ;
if (mcode == 0)
{
valid = 0 ;
gotoxy(5,25) ;
cout <<"\7Enter Correctly" ;
getch() ;
}
if (!member_found(mcode) && valid)
{
valid = 0 ;
gotoxy(5,13) ;
cout <<"\7Record not found" ;
gotoxy(5,14) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
int tcopies, tavail ;
tcopies = no_of_copies(tcode) ;  // member function of BOOK
tavail  = available(tcode) - 1 ;  // member function of BOOK
update_copies(tcode,tcopies,tavail) ;  // member function of BOOK
D.extend_date(d1,m1,y1,15) ;
d1 = D.day ;
m1 = D.mon ;
y1 = D.year ;
update_book(mcode,tcode,d1,m1,y1) ;  // member function of MEMBER
gotoxy(5,13) ;
cout <<"\7Book is issued to " <<membername(mcode) ;
gotoxy(5,15) ;
cout <<"Date of Return : " <<d1 <<"/" <<m1 <<"/" <<y1 ;
getch() ;
}


//**********************************************************
// THIS FUNCTION RETURNS THE BOOK FOR THE MEMBER
//**********************************************************

void WORKING :: returnbook(void)
{
MEMBER M ;
char t1code[5], ch ;
int t2code=0, mcode=0, valid ;
int d1, m1, y1 ;
struct date d;
getdate(&d);
d1 = d.da_day ;
m1 = d.da_mon ;
y1 = d.da_year ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,2) ;
cout <<"Date : " <<d1 <<"/" <<m1 <<"/" <<y1 ;
gotoxy(5,7) ;
cout <<"Enter Code no. of the Member who wants to return book" ;
gotoxy(5,8) ;
cout <<"                        or              " ;
gotoxy(5,9) ;
cout <<"Press <ENTER> for help  " ;
gets(t1code) ;
if (t1code[0] == '0')
return ;
if (strlen(t1code) == 0)
M.list() ;
else
break ;
}
t2code = atoi(t1code) ;
mcode = t2code ;
if (mcode == 0)
{
valid = 0 ;
gotoxy(5,25) ;
cout <<"\7Enter Correctly" ;
getch() ;
}
if (!member_found(mcode) && valid)
{
valid = 0 ;
gotoxy(5,13) ;
cout <<"\7Record not found" ;
gotoxy(5,14) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
if (!issued(mcode) && valid)
{
valid = 0 ;
gotoxy(5,13) ;
cout <<"\7Member have no book to return" ;
gotoxy(5,14) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
int bcode, tcopies, tavail ;
bcode = issued(mcode) ;
gotoxy(5,13) ;
cout <<"Book Code : " <<bcode ;
gotoxy(5,14) ;
cout <<"Book Name : " <<bookname(bcode) ;
tcopies = no_of_copies(bcode) ;
tavail = available(bcode) + 1 ;
int f ;
f = fine(mcode) ;
if (f != 0)
{
gotoxy(5,16) ;
cout <<"You have to pay a fine of Rs." <<f ;
gotoxy(5,17) ;
cout <<"Please do not delay the Return of Book again" ;
}
update_copies(bcode,tcopies,tavail) ;
update_book(mcode,0,0,0,0) ;
gotoxy(5,19) ;
cout <<"\7Book has been returned" ;
getch() ;
}


//**********************************************************
// THIS FUNCTION GIVES DATA TO MODIFY THE BOOK RECORD
//**********************************************************

void WORKING :: modify_book(void)
{
BOOK B ;
char t1code[5], tname[33], tauthor[26], *t1, ch ;
int t2code=0, tcode=0 ;
float t2=0.0, tprice=0.0 ;
int valid ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,5) ;
cout <<"Enter Code or Name of the Book to be modified" ;
gotoxy(5,6) ;
cout <<"                  or                       " ;
gotoxy(5,7) ;
cout <<"Press <ENTER> for help  " ;
gets(t1code) ;
if (t1code[0] == '0')
return ;
if (strlen(t1code) == 0)
B.list() ;
else
break ;
}
t2code = atoi(t1code) ;
tcode = t2code ;
if ((tcode == 0 && !bookname_found(t1code)) || (tcode != 0 && !book_found(tcode)))
{
valid = 0 ;
gotoxy(5,10) ;
cout <<"\7Record not found" ;
gotoxy(5,11) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
if (tcode == 0)
tcode = bookcodeof(t1code) ;
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
BOOK::display(tcode) ;
do
{
gotoxy(5,13) ; clreol() ;
cout <<"Do you want to modify this record (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
gotoxy(5,16) ;
cout <<"Book Name   : " ;
gotoxy(5,17) ;
cout <<"Author Name : " ;
gotoxy(5,18) ;
cout <<"Price       : Rs." ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the name of the book or <ENTER> for no change" ;
gotoxy(19,16) ; clreol() ;
gets(tname) ;
strupr(tname) ;
if (tname[0] == '0')
return ;
if (strlen(tname) > 32)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..32)" ;
getch() ;
}
} while (!valid) ;
if (strlen(tname) == 0)
strcpy(tname,bookname(tcode)) ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the author's name or <ENTER> for no change" ;
gotoxy(19,17) ; clreol() ;
gets(tauthor) ;
strupr(tauthor) ;
if (tauthor[0] == '0')
return ;
if (strlen(tauthor) > 25)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\nEnter correctly (Range: 1..25)" ;
getch() ;
}
} while (!valid) ;
if (strlen(tauthor) == 0)
strcpy(tauthor,authorname(tcode)) ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter price or <ENTER> for no change" ;
gotoxy(22,18) ; clreol() ;
gets(t1) ;
t2 = atof(t1) ;
tprice = t2 ;
if (t1[0] == '0')
return ;
if (strlen(t1) == 0)
break ;
if (tprice < 1 || tprice > 9999)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\nEnter correctly" ;
getch() ;
}
} while (!valid) ;
if (strlen(t1) == 0)
tprice = bookprice(tcode) ;
gotoxy(5,25) ; clreol() ;
do
{
gotoxy(5,20) ; clreol() ;
cout <<"Do you want to save changes (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
BOOK::modify(tcode,tname,tauthor,tprice) ;
gotoxy(5,23) ;
cout <<"\nRecord Modified" ;
getch() ;
}


//**********************************************************
// THIS FUNCTION GIVES DATA TO MODIFY THE MEMBER RECORD
//**********************************************************

void WORKING :: modify_member(void)
{
MEMBER M ;
char m1code[10], mname[26], mphone[10], maddress[33], ch ;
int m2code=0, mcode=0 ;
int valid ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,7) ;
cout <<"Enter Code no. of the Member to be Modify" ;
gotoxy(5,8) ;
cout <<"                        or              " ;
gotoxy(5,9) ;
cout <<"Press <ENTER> for help  " ;
gets(m1code) ;
m2code = atoi(m1code) ;
mcode = m2code ;
if (m1code[0] == '0')
return ;
if (strlen(m1code) == 0)
M.list() ;
else
break ;
}
if (mcode == 0)
{
valid = 0 ;
gotoxy(5,25) ;
cout <<"\7Enter Correctly" ;
getch() ;
}
if (valid && !member_found(mcode))
{
valid = 0 ;
gotoxy(5,13) ;
cout <<"\7Record not found" ;
gotoxy(5,14) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
MEMBER::display(mcode) ;
do
{
gotoxy(5,10) ; clreol() ;
cout <<"Do you want to modify this record (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
gotoxy(5,13) ;
cout <<"Name    : " ;
gotoxy(5,14) ;
cout <<"Phone   : " ;
gotoxy(5,15) ;
cout <<"Address : " ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the name of the member or <ENTER> for no change" ;
gotoxy(19,13) ; clreol() ;
gets(mname) ;
strupr(mname) ;
if (mname[0] == '0')
return ;
if (strlen(mname) > 25)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..25)" ;
getch() ;
}
}
while (!valid) ;
if (strlen(mname) == 0)
strcpy(mname,membername(mcode)) ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the Phone no. of Member or <ENTER> for no change" ;
gotoxy(19,14) ; clreol() ;
gets(mphone) ;
if (mphone[0] == '0')
return ;
if ((strlen(mphone) < 7 && strlen(mphone) > 0) || (strlen(mphone) > 9))
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly" ;
getch() ;
}
} while (!valid) ;
if (strlen(mphone) == 0)
strcpy(mphone,memberphone(mcode)) ;
do
{
valid = 1 ;
gotoxy(5,25) ; clreol() ;
cout <<"Enter the address of the member or <ENTER> for no change" ;
gotoxy(19,15) ; clreol() ;
gets(maddress) ;
strupr(maddress);
if(maddress[0]='0')
return ;
if (strlen(maddress) > 32)
{
valid = 0 ;
gotoxy(5,25) ; clreol() ;
cout <<"\7Enter correctly (Range: 1..32)" ;
getch() ;
}
} while (!valid) ;
if (strlen(maddress) == 0)
strcpy(maddress,memberaddress(mcode)) ;
gotoxy(5,25) ; clreol() ;
do
{
gotoxy(5,18) ; clreol() ;
cout <<"Do you want to save changes (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
MEMBER::modify(mcode,mname,mphone,maddress) ;
gotoxy(5,23) ;
cout <<"\7Record Modified" ;
getch() ;
}


//**********************************************************
// THIS FUNCTION GIVES BOOK CODE TO DELETE THE BOOK RECORD
//**********************************************************

void WORKING :: delete_book(void)
{
BOOK B ;
char t1code[5], tname[33], tauthor[26], ch ;
int t2code=0, tcode=0 ;
int valid ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,5) ;
cout <<"Enter Code or Name of the Book to be Deleted" ;
gotoxy(5,6) ;
cout <<"                  or                       " ;
gotoxy(5,7) ;
cout <<"Press <ENTER> for help  " ;
gets(t1code) ;
if (t1code[0] == '0')
return ;
if (strlen(t1code) == 0)
B.list() ;
else
break ;
}
t2code = atoi(t1code) ;
tcode = t2code ;
if ((tcode == 0 && !bookname_found(t1code)) || (tcode != 0 && !book_found(tcode)))
{
valid = 0 ;
gotoxy(5,10) ;
cout <<"\7Record not found" ;
gotoxy(5,11) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
if (tcode == 0)
tcode = bookcodeof(t1code) ;
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
BOOK::display(tcode) ;
do
{
gotoxy(5,13) ; clreol() ;
cout <<"Do you want to delete this record (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
int tavail, tcopies ;
tavail = available(tcode) ;
tcopies = no_of_copies(tcode) ;
if (tavail != tcopies)
{
gotoxy(5,15) ;
cout <<"\7Record cannot be deleted. This book is issued." ;
getch() ;
return ;
}
BOOK::delete_rec(tcode) ;
gotoxy(5,23) ;
cout <<"\7Record Deleted" ;
getch() ;
}


//**********************************************************
// THIS FUNCTION GIVES MEMBER CODE TO DELETE THE MEMBER
// RECORD
//**********************************************************

void WORKING :: delete_member(void)
{
MEMBER M ;
char m1code[5], mname[26], mphone[10], maddress[33], ch ;
int m2code=0, mcode=0 ;
int valid ;
do
{
valid = 1 ;
while (1)
{
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
gotoxy(5,7) ;
cout <<"Enter Code no. of the Member to be Deleted" ;
gotoxy(5,8) ;
cout <<"                        or              " ;
gotoxy(5,9) ;
cout <<"Press <ENTER> for help  " ;
gets(m1code) ;
m2code = atoi(m1code) ;
mcode = m2code ;
if (m1code[0] == '0')
return ;
if (strlen(m1code) == 0)
M.list() ;
else
break ;
}
if (mcode == 0)
{
valid = 0 ;
gotoxy(5,25) ;
cout <<"\7Enter Correctly" ;
getch() ;
}
if (valid && !member_found(mcode))
{
valid = 0 ;
gotoxy(5,13) ;
cout <<"\7Record not found" ;
gotoxy(5,14) ;
cout <<"Press <ESC> to exit or any other key to continue..." ;
ch = getch() ;
if (ch == 27)
return ;
}
} while (!valid) ;
clrscr() ;
gotoxy(72,1) ;
cout <<"<0>=Exit" ;
MEMBER::display(mcode) ;
do
{
gotoxy(5,10) ; clreol() ;
cout <<"Do you want to Delete this record (y/n) : " ;
ch = getche() ;
ch = toupper(ch) ;
if (ch == '0')
return ;
} while (ch != 'Y' && ch != 'N') ;
if (ch == 'N')
return ;
if (issued(mcode))
{
gotoxy(5,15) ;
cout <<"\7Record cannot be delete. Member has a book" ;
getch() ;
return ;
}
MEMBER::delete_rec(mcode) ;
gotoxy(5,23) ;
cout <<"\7Record Modified" ;
getch() ;
}



//**********************************************************
// MAIN FUNCTION CALLING INTRODUCTION AND MAIN MENU
//**********************************************************

void main(void)
{
MENU menu ;
menu.introduction() ;
menu.main_menu() ;
}