Thread: Really big problem

Jus explain to me if theres some filesize returning function.
I opened a file in binary mode.
This is the content of the file and was witten to it by the 'read(char*, int)' function.
ARJUNorp L c nsed Materia P123456y of MicrARJUN of MicroÎÿ@ª
¨¬¬123456®×ÿÿ‹ AJAYN of MicroÎÿ@ª
¨¬¬987656®×ÿÿ‹ ARJUN of MicroÎÿ@ª
¨¬¬123456®×ÿÿ‹ AJAYN of MicroÎÿ@ª
¨¬¬987656®×ÿÿ‹ asdfghjklqwertyuiopzxcvbnmasdfghjklqwertyuiopqq

It is actually binary of my 'Person class'.
But when I use 'seekg', 'tellg' functions I get 2bytes as the file size.
My computer shows 272 bytes.
Because of this I cannot read the data I put in (as the size is 2);
Why is this happening? Is it the problem of the 'ios::end' / 'ios::beg' flags?
Heres the simplified code. Som functions (which work / has no relevance) have been omitted.

Code:

#include<C:\DOCUME~1\USER\MYDOCU~1\WEB\CPPPROG\CODEBL~1\c_person.cpp>

void list_record(Person*, int);
void search_record(Person*, int);
void add_record(Person*, int);
void delete_record(Person*, int);
void edit_record(Person*, int);
void refresh_file(Person*, int, fstream &);
long read_from_file(Person*, fstream &); //transfer all records to Person*.

int main(){
clrscr();
fstream myfile;

myfile.open("Numbers.imp", ios::in | ios::binary | ios::app);
if(myfile.fail())cout<<"E R R O R Opening File !\n";
else{
	Person buffer[30];
	int size = read_from_file(buffer, myfile);  //size becomes 2 :(
	int n = size/sizeof(Person);
	char ch;

	cout<<"No: of saved records :"<<n<<endl;	//Since size is 2 the records become zero.
	myfile.close(); //Let's close it for now...
	do{
	cout<<"\n<< M E N U >>\n"
		<<"1) List ('l')"<<endl
		<<"2) Search ('s')"<<endl
		<<"3) Add New Entry ('n')"<<endl
		<<"4) Delete an entry ('d'){not implemented yet}"<<endl
		<<"5) Edit an entry ('e') {n i y}"<<endl
		<<"6) Quit ('q')"<<endl
		<<"Your Choice :";
		cin>>ch;
		switch(ch){
		case 'l':list_record(buffer, n);
			break;
		case 's':search_record(buffer, n);
			break;
		case 'n':add_record(buffer, n);
			break;
		case 'd':delete_record(buffer, n);
			break;
		case 'e':edit_record(buffer, n);
			break;
		case 'q':refresh_file(buffer, n, myfile);
		cout<<"Records updated..."
			<<"Exiting...\nPress any key...";
			getch();
			exit(0);
		default :cout<<"Invalid Choice !!!\n";
		}
		}while(1);
}
return 0;
}

long read_from_file(Person* buff, fstream &file){
	file.seekg(ios::beg); file.seekp(ios::beg);
	long start = file.tellg(), end, size;
	file.seekg(ios::end); file.seekp(ios::end);
	end = file.tellg();
	size = end-start;	//'end-start' give 2 instead of 272bytes. :(
	cout<<start<<"  "<<end<<"  "<<size<<endl;
	file.read((unsigned char*) &buff, size); //Copies records to buffer.
	return size;
}

void list_record(Person* buff, int n){	[b]I put this function in just to be safe (It works).
if(n){
	for(int i=0; i<n; i++)
	cout<<i+1<<") "<<buff[ i].get_name()<<"\t\t\t"<<buff[ i].get_numb()<<endl;
	for(i=0; i<20; i++)cout<<"==";
	cout<<endl;
}
}

here's the output.
0 2 2
No: of saved records :0
<<MENU>>
blah blah