Tally die rolls

#include <iostream>
#include <ctime> // time
#include <cstdlib> // rand, srand
using namespace std;

int six_sided_die[] = { 1, 2, 3, 4, 5, 6 }; // the die
int tally_of_rolls[] = { 0, 0, 0, 0, 0, 0 }; // number of times each number is rolled

// This function returns a randomly-generated number in the range of 1 - 6.
int roll_die()
{
    int random_number = 0; // random number from rand()
    int die_number = 0; // converted die number
    random_number = rand() % 6; // Generate a random number.
    die_number = six_sided_die[random_number]; // Convert to die number.
    return die_number; // Return the number generated.
}

// This function adds a die roll to the tally of rolls.
void record_roll(int roll)
{
    tally_of_rolls[roll - 1]++; // Add 1 to the specified die roll.
}

// This function displays a chart of how many of each number were rolled.
void display_results()
{
    cout << "\n\t\tSix-sided Die Rolled One Million Times\n\n"; // Display title for the chart
    cout << "Number\t" << "Was rolled this many times\n"; // DIsplay heading for the chart
    for (int i = 0; i < 6; ++i) // For each die roll,
    {
        cout << i + 1 << "\t" << tally_of_rolls[i] << "\n"; // Display how many times it was rolled.
    }
    cout << "\n"; // Go to the next line.
}


int main()
{
    cout << "This program simulates " // Explain the program.
        "rolling a six-sided die one million times and\n"
        "counts how many times each number is rolled.\n"
        "It uses the rand() function, seeded with "
        "the current time.\n";

    cout << "\nPress enter when ready."; // Prompt for press enter.
    cin.ignore(numeric_limits<streamsize>::max(), '\n'); // Wait for user to press enter.

    srand(time(NULL)); // Prepare the random number generator.
    int current_roll = 0; // This stores the current die roll.

    for (int x = 0; x < 1000000; ++x) // One million times,
    {
        current_roll = roll_die(); // Roll the die.
        record_roll(current_roll); // Record the result.
    }
    display_results(); // Display the results.

    return 0; // End the program.
}