#include<stdio.h>
#include<conio.h>
struct emp
  {
    char name[40] ;
    int age ;
    float bs ;
  };
 
/* this function is used to add record */  
void add_record(FILE *);
void display_record(FILE *);
void modify_record(FILE *);
void delete_record(FILE *);
void query_record(FILE *);
void query_age(FILE *);
void query_salary(FILE *);
void query_name(FILE *);