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  1. #include <stdio.h>
  2.  
  3. #define IU_ARRAY_SIZE(array)   ((int)(sizeof(array) / sizeof((array)[0])))
  4.  
  5. int find(int xs[], int x) {
  6. 	int n = IU_ARRAY_SIZE(xs), i = 0;
  7. 	printf("Inferred N = %d\n", n);
  8. 	while (i < n) {
  9. 		if (xs[i] == x) return i;
  10. 		++i;
  11. 	}
  12. 	return -1;
  13. }
  14.  
  15. int main(void) {
  16. 	int items[] = {1, 2, 3, 4};
  17. 	printf("Initial N = %d\n", IU_ARRAY_SIZE(items));
  18. 	printf("2 is at %d\n", find(items, 2));
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0s 2156KB
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Standard input is empty
stdout
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Initial N = 4
Inferred N = 1
2 is at -1
https://ideone.com/5vI81K
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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