[GCC]array_call_by_value

#include "stdio.h"

void array_call_by_value (int arr[])
{
   arr[0] = 2;
   printf("[in] function\n");
   printf("%d %d %d\n", arr[0], arr[1], arr[2]);
}


int main()
{
   int arr[] = {1, 2, 3};

   printf("[before] function\n");
   printf("%d %d %d\n", arr[0], arr[1], arr[2]);
   array_call_by_value(arr);
   printf("[after] function\n");
   printf("%d %d %d\n", arr[0], arr[1], arr[2]);
}

=====Result=====
1.array是沒有pass by value
2.return arry by value(編譯會錯誤！！)  
ex:
int [] array_call_by_value (int arr[])
{
arr[0] = 2;
printf("in function\n");
printf("%d %d %d\n", arr[0], arr[1], arr[2]);
}