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  1. #include <stdio.h>
  2.  
  3. double arr[265];
  4. double* arr1;
  5. int arra[265];
  6. int* arr2=arra;
  7.  
  8. #define LengthOfArray(a)(sizeof(a)/sizeof(a[0]))
  9.  
  10. size_t f(int a[])
  11. {
  12. return LengthOfArray(a);
  13. }
  14.  
  15. int main(void) {
  16. arr1=arr;
  17. arr2=arra;
  18. arr1[5]=5;
  19. printf("%zu\n", LengthOfArray(arr));
  20. printf("%zu\n", LengthOfArray(arr1));
  21. printf("%zu\n", LengthOfArray(arr2));
  22. printf("%zu\n", f(arra));
  23. return 0;
  24. }
Success #stdin #stdout 0.01s 1720KB
stdin
Standard input is empty
stdout
265
0
1
1