void noDup[] ( int A[] , int n ) {
 
  int i , j , k , s ;
 
  k = n ;
 
  for ( i=0 ; i<n ; i++ ) {
 
    for ( j=0 ; j<n ; j++ )
 
      if ( A[i] == A[j] ) {
 
           for ( s=j ; s<n-1 ; s++ )
 
             A[s] = A[s+1] ;
 
        k-- ;
 
        } // end if
 
  } // end for
 
  int tmp[k] ;
 
  for ( i=0 ; i<k ; i++ )
 
    tmp[i] = A[i] ;
 
  A = tmp ;
 
  } // noDup end

int* foo()
{
    int* array = malloc( number_elements * sizeof(int) );
    // do something with the array


    return array;
}

int *array_without_doubles = remove_doubles( array_with_doubles );
print_array( array_without_doubles );
free( array_without_doubles );