Thread: passing array to function by reference

I tried to send address of array element to the function

Code:

#include <stdio.h>   

void fun(int *pointer) 
{ 
   int i; 
   for ( i = 0; i < 8; i++) 
 
      printf("\n %p %d \n", pointer, i);
} 


    
int main() 
{ 
    int i;
	
   int array[] = {1, 2, 3, 4, 5, 6, 7, 8}; 


     for( i = 0; i < 8; i++)
    {
        printf("\n address of array[%d] %p", i, &array[i]);
    }
    
	for( i = 0; i < 8; i++)
    {
        printf("\n content of array[%d]: %d", i, array[i] );
    }
    
	fun(array);
	
    return 0; 
}

address of array[0] 0061FF0C
address of array[1] 0061FF10
address of array[2] 0061FF14
address of array[3] 0061FF18
address of array[4] 0061FF1C
address of array[5] 0061FF20
address of array[6] 0061FF24
address of array[7] 0061FF28
content of array[0]: 1
content of array[1]: 2
content of array[2]: 3
content of array[3]: 4
content of array[4]: 5
content of array[5]: 6
content of array[6]: 7
content of array[7]: 8
0061FF0C 0


0061FF0C 1
0061FF0C 2
0061FF0C 3
0061FF0C 4
0061FF0C 5
0061FF0C 6
0061FF0C 7



Pointer hold the address of other variable

content of pointer and address of array would be same

so pointer [i] should be same as &array[i] ?

From the output of code it does't seem to correct ?

pointer[i] is an int; &array[i] is a pointer to int. How could they be the same thing?

Originally Posted by laserlight

pointer[i] is an int; &array[i] is a pointer to int. How could they be the same thing?

Code:

#include <stdio.h>    
void fun(int *pointer) 
{ 
   int i; 
   for ( i = 0; i < 8; i++) 
  
      printf("\n %p %d \n", pointer++, i);
} 
     
int main() 
{ 
    int i;
     
   int array[] = {1, 2, 3, 4, 5, 6, 7, 8}; 
 
 
     for( i = 0; i < 8; i++)
    {
        printf("\n address of array[%d] %p", i, &array[i]);
    }


     
    fun(array);
     
    return 0; 
}

address of array[0] 0061FF0C
address of array[1] 0061FF10
address of array[2] 0061FF14
address of array[3] 0061FF18
address of array[4] 0061FF1C
address of array[5] 0061FF20
address of array[6] 0061FF24
address of array[7] 0061FF28

0061FF0C 0
0061FF10 1
0061FF14 2
0061FF18 3
0061FF1C 4
0061FF20 5
0061FF24 6
0061FF28 7

So... you understand what's going on now?