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Boolean check_four_kind (const int wDeck[][13], const char *wFace[], const char *wSuit[], Card card[5], Boolean display_hand_info)
{
	Boolean four_kind_exist = FALSE;
	int h = 0, n = 0, r = 0, q = 0; //variables used for iterating through the subvalues (cards) of the card[] array

	//function test case
	//card[0].face = 1;
	//card[1].face = 0;
	//card[2].face = 1;
	//card[3].face = 1;
	//card[4].face = 1;

	//iterates through cards in the card struct and compares them to every other card in the hand.
	while (h < 5) //tier1: loop cards
	{
		while (n < 5) //tier2: loop every card in the hand and compare to the card specified by 'h'
		{
			if (card[h].face == card[n].face && h != n) //if n != h, then the card in the struct is different than the one it is being compared to.
			{
				/*printf ("card[%d]=card[%d] ", h, n);*/
				while (r < 5) //tier3: loop every card in the hand and compare to the card specified by 'n'
				{
					if (card[n].face == card[r].face && r != n && r != h) //if r != (n or h), then it is a unique value
					{
						while (q < 5) //tier4: loop every card in the hand and compare to the card specified by 'r'
						{
							if (card[r].face == card[q].face && q != r && q != n && q != h)
								four_kind_exist = TRUE;
							q++; //increment q so a different card can be selected
						}
					}
					q = 0; //reset variable so it can be used again
					r++; //increment r so a different card can be selected
				}
			}
			r = 0; //reset variable so it can be used again
			n++; //increment n so a different card can be selected
		}
		n = 0; //reset variable so it can be used again
		h++; //increment h so a different card can be selected
	}

	if (display_hand_info == TRUE) //displays info if it is warranted (aka, it keeps from needlessly displaying the hand info of the computer).
	{
		if (four_kind_exist == TRUE)
			printf ("This hand contains Four of a Kind.\n");
		else
			printf ("This hand does not contain Four of a Kind.\n");
	}

	return four_kind_exist;
}