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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stdlib.h>
  4.  
  5. #define DEF_LinkedList(T) \ 
  6. 	typedef struct _LinkedList##T{ \
  7. 		T value; \
  8. 		struct _LinkedList##T *next; \
  9. 	} LinkedList##T; \
  10. 	LinkedList##T *LinkedList##T##_New(const T *value){ \
  11. 		LinkedList##T *result = calloc(0, sizeof(LinkedList##T)); \
  12. 		memcpy(&result->value, value, sizeof(T)); \
  13. 		return  result; \
  14. 	} \
  15. 	void LinkedList##T##_Free(LinkedList##T *list) { \
  16. 		LinkedList##T *prev; \
  17. 		while(prev = list){ \
  18. 			list = list->next; \
  19. 			free(prev); \
  20. 		}  \
  21. 		free(list); \
  22. 	} \
  23. 	LinkedList##T *LinkedList##T##_Top(LinkedList##T *list){ \
  24. 		if(!list) NULL; \
  25. 		while(list->next) list = list->next; \
  26. 		return list; \
  27. 	}\
  28. 	int LinkedList##T##_Push(LinkedList##T *list, const T *value){ \
  29. 		if(list == NULL) return LinkedList##T##_New(value); \
  30. 		LinkedList##T *top = LinkedList##T##_Top(list); \
  31. 		top->next = LinkedList##T##_New(value); \
  32. 		return list; \
  33. 	} \
  34. 	void LinkedList##T##_ForEach(const LinkedList##T *list, void(*op)(const T *)){ \
  35. 		while(list){ \
  36. 			op(&list->value); \
  37. 			list = list->next; \
  38. 		} \
  39. 	}
  40.  
  41. typedef int Int;
  42. DEF_LinkedList(Int);
  43.  
  44.  
  45. void printOp(const int *v){
  46. 	printf("%i", *v);
  47. }
  48.  
  49. int main(void) {
  50. 	LinkedListInt *list;
  51. 	int i;
  52. 	for(i = 0; i <= 10; ++i)
  53. 		list = LinkedListInt_Push(list, &i);
  54.  
  55. 	LinkedListInt_ForEach(list, printOp);
  56.  
  57. 	LinkedListInt_Free(list);
  58. 	return 0;
  59. }
  60.  
Success #stdin #stdout 0s 2184KB
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https://ideone.com/xM8EdP
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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