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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. struct list {
  5.     int value;
  6.     struct list *next;
  7. };
  8.  
  9. void list_add(struct list **li, int value);
  10. struct list *list_fromarray(int *v, int n);
  11. void list_print(struct list *li, const char *msg);
  12. void list_free(struct list *li);
  13.  
  14. int main(void) {
  15.     struct list *list;
  16.     int test[] = {1, 4, 8, 9, 13, 42};
  17.     list = list_fromarray(test, sizeof test/sizeof *test);
  18.     list_print(list, "final list");
  19.     list_free(list);
  20. }
  21.  
  22. struct list *list_fromarray(int *v, int n) {
  23.     struct list *li = NULL;
  24.     for (int k = n - 1; k >= 0; k--) {
  25.         list_add(&li, v[k]);
  26.     }
  27.     return li;
  28. }
  29.  
  30. void list_add(struct list **li, int value) {
  31.     struct list *node;
  32.     node = malloc(sizeof *node);
  33.     node->value = value;
  34.     node->next = *li;
  35.     *li = node;
  36. }
  37.  
  38. void list_print(struct list *li, const char *msg) {
  39.     printf("%s:", msg);
  40.     while (li) {
  41.         printf(" %d", li->value);
  42.         li = li->next;
  43.     }
  44.     puts("");
  45. }
  46.  
  47. void list_free(struct list *li) {
  48.     while (li) {
  49.         struct list *bak = li;
  50.         li = li->next;
  51.         free(bak);
  52.     }
  53. }
  54.  
Success #stdin #stdout 0s 2140KB
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stdin
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Standard input is empty
stdout
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final list: 1 4 8 9 13 42
https://ideone.com/BkfDFM
language:
C99 (gcc 8.3)
created:
8 years ago
visibility:
secret

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