C++ Pointers and Indirection: shuffle.cpp

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;

void shuffle( int [ 10 ] );
void playorder( const int [10], const char *[]);

int main()  {
   int songorder[10] =  {0};
   const char *mymp3list[ 10 ] =
        {"Happy","Dark Horse","Talk Dirty","All Of Me","Drunk In Love",
          "Pompeii","Team","Say Something","Counting Stars","Timber"};

   cout << "Original Song Order:" << endl;
   for (int i= 1 ; i <= 10 ; ++i)
         cout << i << ". " << mymp3list[i-1] << endl;

   cout << "Shuffled Order:" << endl;
   srand( time( 0 ));
   shuffle( songorder );
   for (int i = 0; i < 10 ; ++i )
       cout << i+1 << "->" << songorder[i] << "   " ;
   cout << endl<< endl;

   playorder( songorder, mymp3list );
   return 0;
}

void shuffle( int order[ 10 ] ){
// places the numbers from 1 to 10 in random order in the array order
   int position;
   int  i;
   for (i= 1; i <= 10; i++ ) {
      do {
         position = rand() % 10;
      } while( order[position]!= 0 );
      order[position] = i;
   }
}
void playorder( const int order[ 10 ], const char *songlist[] ) {
// prints out the songs in order given by order
   for ( int song = 1; song <= 10; song++ )
      for ( int position = 0; position < 10; position++ )
            if ( order[position] == song )
               cout << song  << ". " << songlist[ position ] << "\n";
   cout<< endl;
}