dacode45 / cse332_lab1 Goto Github PK

I made program_name a global variable for 2 reasons. 
<rant>
1) cards.cpp and cards.h are not self contained headers that I will be 
importing into other projects where they might be conflicts. They are 
tied closely to this project ( I know this because we declare usage messages
and error handling in cards.h. I library header file wouldn't have these).
Given that the 3 files are tied so closely together, I figured I might as well
make program_name a global because 
2) it make it easier to call functions. Since functions that throw errors
will print out usage messages, and to print out a usage message requires
the program_name, these functions should have acess to the constant program_name
natively. 
3) program_name is only written to once (its a constant variable.) Also it is a char*
Its an essentially static variable that I can't perform operations on or with save for << and >>.
It is fundamentally useless to this program, I shouldn't bloat my parameter list by adding
program_name to every function called in cse332_lab1.cpp
</rant>
I may loose points for this, but I don't see a good reason not to do this right now.
source: many post from Stack Overflow

No errors or warnings happened during compilation. Tested program with
hands.txt

KD JD 6s 5s 3c // no rank (king high)

6H // not a hand (too few)

Qs QH	 JH Qc Jc // full house

6c 10s 9H  8s  7H // straight

AH Ks Js AD Ac // three of a kind

9D  6D 5D 8D 7D // straight flush

7s 8c 2s 5H 2c // one pair
     
Kc 3s 3D 2D 7c 5c  // not a hand (too many)

4s 4H  4D As 4c  // four of a kind

KH   10H 3H 2H 8H // flush

9c QD 10c 10D 9s // two pairs

This has comments, invalid hands, spaces, and all ranks.

How extra credit works
How it works.
Each card gets a weight depending on the individual ranking scheme for that hand
The weight is multiplied by the rank to determin that cards value. Values are added
cards with a higher value are better hands than cards with a lesser value.
For this to work the weights must satisfy the inequality
a> 13*b + 13*c + 13*d+e; b> 13*c + 13*d + 13*e; c > 13*d + 13*e
setting e to 1
d = 14, c = 196, b = 2744, a = 38416 satisfies this inequality.
The max rank for a hand is therefore a+b+c+d+e or 537823.
I can order the hands by multiplying a rank by some integer below
This allows me to sort and check if hands are equal.
*/
1)Assign each hand an unsinged int.
2)Sort hands by assignement.
3)Badabing badabomb hands are sorted and can compare to each other
using an if