#include <iostream>
#include <fstream>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <conio.h>
#include <dos.h>
#include <Windows.h>
#include <exception>
#include <cmath>
#include <ctime>
#include <iomanip>
#include <time.h>
using namespace std;
void WORKING :: issuebook(void)
{ ...............
struct date d ;
getdate(&d);
d1 = d.da_day ;
m1 = d.da_mon ;
y1 = d.da_year ;
I have an error C3861: 'getdate': identifier not found. or identifier "getdate" is undefined. Anyone plz help me to solve it . Thank you .