Everytime I run this program and enter a new record, it gets terminated on these statements:
stud.pcent=((stud.mhin+stud.meng+stud.mmat+stud.msci+stud.msst)*100)/(mm.hin+mm.eng+mm.sst+mm.sci+mm.mat);
fwrite(&stud,recsize,1,file);The whole program is this. It is only partially complete.
#include<conio.h>
#include<iostream.h>
#include<stdlib.h>
#include<string.h>
#include<stdio.h>
#define UARROW 72
#define DARROW 80
#define ENTER 13
#define ESCAPE 27
int key;
char s=219;
FILE *file,*tmp;
long int recsize;
void getkey();
struct profile
{
char fname[15],lname[15],month[10];
int date,year,grade,roll,admin;
float meng,msst,mmat,msci,mhin,pcent;
}stud;
struct max
{
float hin,eng,sci,sst,mat;
}mm;
void addrec()
{
fseek(file,0,SEEK_END);
int ctr=0;
while(ctr==0)
{
gotoxy(5,2);
cout<<"You are in the record entry module. Follow the steps to enter the record successfully.";
gotoxy(10,4);
cout<<"Enter first name: ";
gets(stud.fname);
gotoxy(10,5);
cout<<"Enter last name: ";
gets(stud.lname);
gotoxy(10,6);
cout<<"Enter grade: ";
cin>>stud.grade;
gotoxy(10,7);
cout<<"Enter roll number: ";
cin>>stud.roll;
gotoxy(10,8);
cout<<"Enter scholar number: ";
cin>>stud.admin;
gotoxy(10,10);
cout<<"Date of birth: Date: ";
cin>>stud.date;
gotoxy(25,11);
cout<<"Month(type the full name): ";
gets(stud.month);
gotoxy(25,12);
cout<<"Year: ";
cin>>stud.year;
gotoxy(10,14);
cout<<"Marks entry: Hindi: ";
cin>>stud.mhin;
gotoxy(23,15);
cout<<"English: ";
cin>>stud.meng;
gotoxy(23,16);
cout<<"Maths: ";
cin>>stud.mmat;
gotoxy(23,17);
cout<<"Science: ";
cin>>stud.msci;
gotoxy(23,18);
cout<<"Social Studies: ";
cin>>stud.msst;
gotoxy(10,20);
cout<<"Record Has been saved";
getch();
stud.pcent=((stud.mhin+stud.meng+stud.mmat+stud.msci+stud.msst)*100)/(mm.hin+mm.eng+mm.sst+mm.sci+mm.mat);
fwrite(&stud,recsize,1,file);
clrscr();
gotoxy(10,10);
cout<<"Press ENTER to add another record.\n";
gotoxy(10,11);
cout<<"Press ESCAPE to go back.\n";
getkey();
switch(key)
{
case ENTER:
ctr=0;
break;
case ESCAPE:
ctr=1;
}
}
}
void disprec()
{
rewind(file);
while(fread(&stud,recsize,1,file)==1)
{
cout<<"\n\t"<<stud.roll<<"\n\t"<<stud.grade<<"\n\t";
puts(stud.fname);
}
}
void drawbox(int boxa,int boxb,int boxc,int boxd)
{
int i,j;
char s=205,c=201,q=186,d=187,e=200,f=188;
gotoxy(boxa,boxb);
cout<<c;
gotoxy(boxa,boxd-1);
cout<<e;
gotoxy(boxc-1,boxb);
cout<<d;
gotoxy(boxc-1,boxd-1);
cout<<f;
for(i=boxa+1;i<boxc-1;i++)
{
for(j=boxb;j<boxd;j++)
{
gotoxy(i,j);
cout<<s;
}
}
for(i=boxa;i<boxc;i++)
{
for(j=boxb+1;j<boxd-1;j++)
{
gotoxy(i,j);
cout<<q;
}
}
for(i=boxa+1;i<boxc-1;i++)
{
for(j=boxb+1;j<boxd-1;j++)
{
gotoxy(i,j);
cout<<" ";
}
}
gotoxy(boxa+1,boxb+1);
}
void menu_main(int ch)
{
textcolor(7);
textbackground(0);
int q;
clrscr();
gotoxy(30,1);
cout<<"Welcome to KPercent5.0\n\n\n\n\n";
cout<<" Add Records\n\n";
cout<<" Display Records\n\n";
cout<<" Search Records\n\n";
cout<<" Set defaults\n\n";
cout<<" Exit\n\n";
gotoxy(11,2*(ch)+4);
cout<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s;
gotoxy(41,2*(ch)+4);
cout<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s<<s;
gotoxy(10,24);
cout<<"Press UP and DOWN ARROWS to navigate. Press ENTER to select";
}
void execute_main(int ch)
{
clrscr();
switch(ch)
{
case 1:
addrec();
break;
case 2:
disprec();
break;
case 3:
cout<<"Search";
break;
case 5:
exit(1);
case 4:
cout<<"Set defaults";
}
getch();
}
void getkey()
{
key=getch();
if(key==0)
key=getch();
}
void main()
{
int i=1;
clrscr();
file=fopen("F:\PROFILES.DAT","rb+");
if(file==NULL)
{
file=fopen("F:\PROFILES.DAT","wb+");
if(file==NULL)
{
puts("CANNOT OPEN THE SOURCE FILE.....!!!!!");
getch();
exit(2);
}
}
else
{
cout<<"FILE OPENED";
getch();
}
recsize=sizeof(stud);
while(1)
{
menu_main(i);
getkey();
switch(key)
{
case UARROW:
i=i-1;
break;
case DARROW:
i=i+1;
break;
case ENTER:
execute_main(i);
break;
}
if(i==0)
i=5;
if(i==6)
i=1;
}
}