C Program to Program to append records to a file

C Program to Program to append records to a file

#include<stdio.h>

#include<stdlib.h>

int main(void)

{

 struct record

 {

  char name[20];

  int roll;

  int marks;

 }student;

 FILE *fp;

 int choice=1;

 fp=fopen("stu","ab");/*opened in append mode*/

 if(fp==NULL)

 {

  printf("Error in opening file\n");

  exit(1);

 }

 while(choice==1)

 {

  printf("Enter name : ");

  scanf("%s",student.name);

  printf("Enter roll no : ");

  scanf("%d",&student.roll);

  printf("Enter marks : ");

  scanf("%d",&student.marks);

  fwrite(&student,sizeof(student),1,fp);

  printf("Want to enter more ?(1 for yes / 0 for no) : ");

  scanf("%d",&choice);

 }

 fclose(fp);

 return 0;

}