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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. typedef struct tag_List {
  5.     struct tag_List *next;
  6.     int val;
  7. } List;
  8.  
  9. void init(List *);
  10. void add(List *, int);
  11.  
  12. int main()
  13. {
  14.     List ob_root;
  15.     List *p;
  16.  
  17.     init(&ob_root);
  18.     add(&ob_root, 1);
  19.     add(&ob_root, 2);
  20.     add(&ob_root, 3);
  21.  
  22.     for (p = &ob_root; NULL != p->next; p = p->next) {
  23.         printf("%d\n", p->val);
  24.     }
  25.     return 0;
  26. }
  27.  
  28. void init(List * p)
  29. {
  30.     p->next = NULL;
  31.     p->val = 0;
  32. }
  33.  
  34. void add(List * pob_root, int v)
  35. {
  36.     List *p;
  37.     for (p = pob_root; NULL != p->next; p = p->next) {
  38.         ;
  39.     }
  40.     p->val = v;
  41.     p->next = malloc(sizeof(*p));
  42.     init(p->next);
  43. }
  44.  
Success #stdin #stdout 0s 2424KB
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stdin 
Standard input is empty
stdout 
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https://ideone.com/jOnXRy
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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