Thread: Structure and file

Code:

void getinfoStudent()
{


    system("cls");
    int studentnum, i, j = 0;
    printf("Please type the student number to look at the student's information: ");
    scanf("%d",&studentnum);


FILE *fp;


fp = fopen("studentinfo.txt","r");
 if (fp == NULL) {
         printf("I couldn't open results.dat for printing.\n");
         exit(0);
      }


    for (i = 0; i<MAX; i++)
    {
        if(studentnum == student[i].studentnumber)
        {
            printf("First Name  Last Name  A1  A2  A3  A4  A5  L1  L2  L3  L4  L5  Midterm  Final\n");
            printf("%s %s %d %d %d %d %d %d %d %d %d %d %d %d %d\n",
                   student[i].firstname,student[i].lastname,student[i].studentnumber,student[i].markAssignment[0],
                   student[i].markAssignment[1],student[i].markAssignment[2],student[i].markAssignment[3],student[i].markAssignment[4],
                   student[i].markLab[0],student[i].markLab[1],student[i].markLab[2],student[i].markLab[3],student[i].markLab[4],
                   student[i].markMidterm, student[i].markFinal);
                   fclose(fp);
                   break;
                   j = 1;


        }


    }
    if (j == 0)
    {
              printf("Invalid student number. Please type it again.\n");
            getch();
            system("cls");
            getinfoStudent();
    }
}

I've posted wrong code in my previous thread, so I decided to make another thread.

I'm trying to compare the scanned student number with the student number in the file. If the scanned student number matches to the student number in the file, the program prints the specific information of the student with that number. Otherwise, it prints invalid and goes back to scanning part.

I've tried to use for loop to find if there is any numbers which match up to the number in the file. However, seems like it's not working properly.

Could anyone help me with this problem?
Thank you!!

my file is txt file

In order to compare text entered by the user from stdin to that from a file, you need to read in the characters one way or another from the file.

C File I/O Tutorial - Cprogramming.com