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  1. #include <stdio.h>
  2.  
  3. void foo(int length, int (*array)[length])
  4. {
  5.   printf("length: %d "
  6.          "sizeof(*array): %u\n",
  7.          length,
  8.          sizeof(*array));
  9. }
  10.  
  11. int main(void)
  12. {
  13. 	foo(5, NULL);
  14. 	foo(6, NULL);
  15. 	foo(100, NULL);
  16. 	foo(10000, NULL);
  17. 	int a;
  18. 	scanf("%d", &a);
  19. 	foo(a, NULL);
  20. }
Success #stdin #stdout 0s 2164KB
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stdin
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12345
stdout
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length: 5 sizeof(*array): 20
length: 6 sizeof(*array): 24
length: 100 sizeof(*array): 400
length: 10000 sizeof(*array): 40000
length: 12345 sizeof(*array): 49380
https://ideone.com/4pd6wR
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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