Thread: C programming sort of student records

  1. #1
    Registered User
    Join Date
    Jul 2010

    C programming sort of student records

    So I have to read a file that contains student records in the form:

    lastname, firstname:studentid:score1:score2:score3:score4:sc ore5:grade

    and store them in an array of structures. I then have to print a menu for the user to chose what they want to do with the list of records (i.e. sort or print). Anyways, I am having trouble with my sort algorithm. It only swaps the first letter of each name and I need it to swap the whole record. I do not have to sort by last name and first name, only by the first letter of each name field in the list. Can anyone help?

    void sortListName(STUDENT records[], int count)
       int smallest;
       int tempData;
       int current;
       int walk;
         for (current = 0; current < count; current++)
    	      smallest = current;
              for (walk = current + 1; walk <= count; walk++)
                 if ((strcmp(records[walk].name, records[smallest].name)) < 0)
    		         smallest = walk;
              tempData = *records[current].name;
              *records[current].name = *records[smallest].name;
              *records[smallest].name = tempData;

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    tempdata should be a STUDENT, not an int
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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