#include <stdio.h>

extern void add_array_(int[], int *);

int main(){
  int i;

  int length = 10;
  int array[length];

  for( i = 0; i < length; i++ ){
    array[i] = i + 1;
  }

  printf( "Before: \n" );
  for( i = 0; i < length; i++ ){
    printf( "%d ", array[i] );
  }
  printf( "\n" );

  add_array_( array, &length );

  printf( "After : \n" );
  for( i = 0; i < length; i++ ){
    printf( "%d ", array[i] );
  }
  printf( "\n" );

  return 0;
}