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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. typedef struct stack
  5. {
  6.     int data;
  7.     struct stack *next;
  8. } stack;
  9.  
  10.  
  11. void push_s(stack** s, int data)
  12. {
  13.     while (*s)
  14.         s = &(*s)->next;
  15.  
  16.     *s = malloc(sizeof(**s));
  17.     (*s)->data = data;
  18.     (*s)->next = NULL;
  19. }
  20.  
  21. void print_s(stack const *s)
  22. {
  23.     for (;s;s = s->next)
  24.         printf("%p: data = %d, next = %p\n", s, s->data, s->next);
  25. }
  26.  
  27. void free_s(stack **s)
  28. {
  29.     while (*s)
  30.     {
  31.         stack *tmp = *s;
  32.         *s = tmp->next;
  33.         free(tmp);
  34.     }
  35. }
  36.  
  37. int main (void)
  38. {
  39.     stack* s = NULL;
  40.  
  41.     push_s(&s,2);
  42.     push_s(&s,4);
  43.     push_s(&s,6);
  44.     push_s(&s,8);
  45.  
  46.     print_s(s);
  47.     free_s(&s);
  48.  
  49.     return 0;
  50. }
Success #stdin #stdout 0s 2424KB
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stdin
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Standard input is empty
stdout
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0x826e008: data = 2, next = 0x826e018
0x826e018: data = 4, next = 0x826e028
0x826e028: data = 6, next = 0x826e038
0x826e038: data = 8, next = (nil)
https://ideone.com/tn1ta2
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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