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  1. #include <stdio.h>
  2. #include <stddef.h>
  3. #include <stdlib.h>
  4.  
  5. #define DECL_STACK_OF(type) \
  6. 	struct type##_stack{ type *data; size_t max_elements, size; }; \
  7. 	struct type##_stack create_##type##_stack_of_size(size_t size); \
  8. 	void push_##type##_to_stack(struct type##_stack *stack, type val); \
  9. 	type get_##type##_from_stack_at(struct type##_stack *stack, size_t pos); 
  10.  
  11. #define DEF_STACK_OF(type) \
  12. 	struct type##_stack create_##type##_stack_of_size(size_t size){ \
  13. 		struct type##_stack result = { \
  14. 			malloc(sizeof(type)*size), \
  15. 			size, \
  16. 			0 \
  17. 		};\
  18. 		return result; } \
  19. 	void push_##type##_to_stack(struct type##_stack *stack, type val){ \
  20. 		if(stack->size < stack->max_elements){ \
  21. 			stack->data[stack->size++] = val; } } \
  22. 	type get_##type##_from_stack_at(struct type##_stack *stack, size_t pos){ \
  23. 		return stack->data[pos]; }
  24.  
  25. #define DECL_AND_DEF_STACK_OF(type) \
  26.     DECL_STACK_OF(type) \
  27.     DEF_STACK_OF (type)
  28.  
  29. DECL_AND_DEF_STACK_OF(int)
  30.  
  31. int main(void) {
  32. 	struct int_stack cont = create_int_stack_of_size(20);
  33. 	for(size_t i = 0; i < 10; ++i)
  34. 		push_int_to_stack(&cont, i);
  35.  
  36. 	for(size_t i = 0; i < cont.size; ++i)
  37. 		printf("%d ", get_int_from_stack_at(&cont, i));
  38. 	return 0;
  39. }
  40.  
Success #stdin #stdout 0s 2244KB
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https://ideone.com/toIzQs
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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