Thread: Student records program

Okay so I have a project, im almooost done, i just lack a certain function.

Code:

void add_record(record x, FILE *fp)
{
    char ans;
    int tempid;
    do
    {
        system("cls");
INPUT:
        printf("Student ID: "); scanf("%d", &x.idno);
        fflush(stdin);
        printf("First Name: "); gets(x.Fname);
        printf("Last Name; "); gets(x.Lname);
        strupr(x.Lname);
        printf("Course: "); gets(x.course);
        printf("Age: "); scanf("%d", &x.age);
        fflush(stdin);
        printf("Tuition: "); scanf("%f", &x.tuition);
        system("cls");
        printf("Enter another record? Y/N");
        ans=toupper(getch());
        system("cls");
        fwrite(&x,sizeof(x),1,fp);
    }while(ans=='Y');
    fclose(fp);
}

If the user inputs a Student Number which already exists, i want my program to ask the user again for another number and display sumthing like "Student Number already exists. Try again"

I've tried working it out myself, but every time I input a Student Number , the program displays that it already exists, even though its not.

What do you suggest I do?? Pleassee i need help, the project is due tomorrow

Well, you might start with the code that shows the problem you're having...

There is nothing in your provided sample that even approaches testing for existing codes or printing error messages about them.