demos/ansi-c/float-list-plain-c.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4
   5 struct Node
   6 {
   7         float f;
   8         struct Node* next;
   9 };
  10
  11 void IterateList (struct Node* HeadList);
  12 struct Node* makelist(struct Node** Head, struct Node** Tail);
  13
  14 struct Node* makelist(struct Node** Head, struct Node** Tail)
  15 {
  16         struct Node* new = (struct Node *)malloc(sizeof (struct Node));
  17         new->next = NULL;
  18
  19         if (*Head == NULL)
  20         {
  21                 *Head = new;
  22                 *Tail = *Head;
  23         }
  24         else
  25         {
  26                 (*Tail)->next = new;
  27                 *Tail = new;
  28         }
  29         return (new);
  30 }
  31 void IterateList (struct Node* HeadList)
  32 {
  33         struct Node* current = HeadList;
  34
  35         while (current != NULL)
  36         {
  37                 printf("The float you entered is %f\n",current->f);
  38                 current = current->next;
  39         }
  40 }
  41 int main(void)
  42 {
  43         struct Node* head = NULL;
  44         struct Node* tail = NULL;
  45         struct Node* curr = NULL;
  46         int i;
  47
  48         for(i=0; i < 20; i++)
  49         {
  50                 /* create node */
  51                 curr = makelist(&head,&tail);
  52                 printf("Enter float :\n");
  53                 scanf("%f", &(curr->f));
  54         }
  55
  56         /* now iterate the list */
  57         IterateList(head);
  58
  59         return 0;
  60 }