The files below contain the main()function and header file for a singly linked-list student database program. The info for each student should be read from the students.txt file. Using these,create a new file that will implement the main functions for this single linked-list program.

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// mainDriver.c (main functions) //

#include "sll_list.h"

int main()

{

int choice,list_size,id;

do

{

printf("1. initialize list of students 2. add additional student to front of list 3. add additional student to rear of list 4. delete student 5. sort students alphabetically 6. sort students by idNum 7. show number of students in list 8. print students 9. quit program ");

scanf("%d",&choice);

list_t l;

l.head=NULL;

l.tail=NULL;

switch(choice)

{

case 1://initialize list of students

scanf("%d",list_size);

l.size=list_size;

intializeList(list)t *list, FILE *inFile);

break;

case 2://add additional student to front of the list:

addToFront(l);

break;

case 3://add additional student to tail of the list:

addToRear(l);

break;

case 4://delete student

scanf("%d",id);

deleteStudent(l,id);

break;

case 5://sort students alphabetically

sortListByLN(l);

break;

case 6://sort students by id

sortListByNum(l);

break;

case 7: //number of students in the list

size(l);

break;

case 8: //printing students in the list

printStudents(l);

break;

case 9:

printf("quiting from the program");

break;

}

}while(choice!=9);

return 0;

}

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// sll_list.h (header file of singly linked-list) //

#ifndef SLL_LIST_H

#define SLL_LIST_H

#include

#include

#include

typedef struct {

char month[4];

int day, year;

} dateOfBirth;

typedef struct student {

int age;

float gpa;

int id;

dateOfBirth dob;

char lastName[20];

char firstName[15];

struct student *next;

} student_t;

typedef struct list {

student_t *head;

student_t *tail;

int size;

} list_t;

list_t *newList( );

student_t *addStudent( FILE *inFile, int whichInput );

int printMenu( );

void initializeList( list_t *list, FILE *inFile );

void addToFront( list_t *list, int whichInput, FILE *inFile );

void addToRear( list_t *list, int whichInput, FILE *inFile );

void deleteStudent( list_t *list, int idNum );

void swap( student_t *s, student_t *p);

void sortListByLN( list_t *list );

void sortListByNum( list_t *list );

int size( list_t *list );

int isEmpty( list_t *list );

void printStudents ( list_t *list );

#endif /* SLL_LIST_H */

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// student.txt //

5

19 3.2 123456789 Jan 31 1999 Smith David

20 3.0 456789123 Mar 7 1998 Jackson Susan

18 2.9 789123456 May 14 2000 Miller Scott

19 3.4 987654321 Sep 12 1999 Wilson Marie

20 3.7 654321987 Jun 21 1998 Johnson Curtis