void main()
{
int leave = 0;
struct student stu;
stu.matrix = 0;
while(!leave)
{
char op[10];
enum CHOICE choice;
printf("\nWelcome to this incredibly useful tool: \n");
printf("In order to enter a student detail, choose 0\n");
printf("I norder to print the details, choose 1\n");
printf("If instead you wish to exit, please key in 2: ");
scanf("%s", &op);
choice = atoi(op);
switch(choice)
{
case ENTER:
stu = enterDetails(stu);
break;
case PRINT:
printDetails(stu);
break;
case EXIT:
leave = 1;
break;
default:
printf("Invalid input, try again.\n");
}
}
}
int main(void)
{
FILE *studentFile;
char option;
struct student_details *studentPointer;
studentPointer = (struct student_details*) malloc(sizeof(struct student_details));
if (studentPointer == NULL)
{
printf("ERROR: Not enough memory to run this program\n");
exit(2);
}
printf("\nWould you like to view Student Details 'v' or overwrite them 'o'?\n");
scanf("%1c", &option);
/****************** SECTION TO READ FROM FILE ***************************/
if (option == 'v')
{
printf("\nFile contents are:\n\n");
readFile(studentFile); //CALL FILE READER FUNCTION
printf("\n\n");
}
/****************** SECTION TO WRITE TO STRUCT AND THEN TO FILE *********/
else if (option == 'o')
{
getchar();
printf("\nFile will be changed from:\n");
readFile(studentFile); //CALL FILE READER FUNCTION
printf("\n\n");
enterDetails(studentPointer); //CALL FUNCTION TO WRITE TO STRUCT
writeFile(studentFile, studentPointer); //CALL FUNCTION TO WRITE TO FILE
printf("\nFile contents have been changed to:\n");
readFile(studentFile); //CALL FUNCTION TO READ FILE AFTER CHANGES HAVE BEEN MADE
printf("\n\n");
}
else printf("Invalid operator selected, Please try again.\n");
free(studentPointer);
return 0;
}
