getdate() and setdate() function in C with Examples

getdate()

getdate() function is defined in dos.h header file. This function fills the date structure *dt with the system’s current date.

Syntax

struct date dt;
getdate(&dt);

Parameter: This function accepts a single parameter dt which is the object of structure date.

Return Value: This method do not returns anything. It just gets the system date and sets it in the specified structure.

Program 1: Implementation of getdate() function

// C program to demonstrate getdate() method 
  
#include <dos.h> 
#include <stdio.h> 
  
int main() 
{ 
    struct date dt; 
  
    // This function is used to get 
    // system's current date 
    getdate(&dt); 
  
    printf("System's current date\n"); 
    printf("%d/%d/%d", 
           dt.da_day, 
           dt.da_mon, 
           dt.da_year); 
  
    return 0; 
} 

Output:

setdate()

setdate() function is defined in dos.h header file. This function sets the system date to the date in *dt.

Syntax

struct date dt;
setdate(&dt)

Parameter: This function accepts a single parameter dt which is the object of structure date that has to be set as the system date.

Return Value: This method do not returns anything. It just sets the system date as specified.

Program 1: Implementation of setdate() function

// C program to demonstrate setdate() method 
  
#include <dos.h> 
#include <stdio.h> 
  
int main() 
{ 
    struct date dt; 
  
    // This function is used to get 
    // system's current date 
    getdate(&dt); 
  
    printf("System's current date\n"); 
    printf("%d/%d/%d", 
           dt.da_day, 
           dt.da_mon, 
           dt.da_year); 
  
    printf("Enter date in the format (date month year)\n"); 
    scanf("%d%d%d", &dt.da_day, &dt.da_mon, &dt.da_year); 
  
    // This function is used to change 
    // system's current date 
    setdate(&dt); 
  
    printf("System's new date (dd/mm/yyyy)\n") 
        printf("%d%d%d", dt.da_day, dt.da_mon, dt.da_year); 
  
    return 0; 
} 

Output:

Note: This programs are run in TurboC/C++ compiler

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