Unicode card deck

Exerpt from wikipedia;

Playing Cards[1][2] Official Unicode Consortium code chart   (PDF)

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

U+1F0Ax

🂠

🂡

🂢

🂣

🂤

🂥

🂦

🂧

🂨

🂩

🂪

🂫

🂬

🂭

🂮

U+1F0Bx

🂱

🂲

🂳

🂴

🂵

🂶

🂷

🂸

🂹

🂺

🂻

🂼

🂽

🂾

U+1F0Cx

🃁

🃂

🃃

🃄

🃅

🃆

🃇

🃈

🃉

🃊

🃋

🃌

🃍

🃎

U+1F0Dx

🃑

🃒

🃓

🃔

🃕

🃖

🃗

🃘

🃙

🃚

🃛

🃜

🃝

🃞

/*
 * I recently wrote a short example program on how to generate
 * unicode characters.
 *
 * I'll try to contain the whole post in the source of this file for
 * the sake of keeping it short.
 */
#include <locale.h>
#include <stdio.h>

#define CLEAN(X) (((((X ^ CARD) & ~SPADES) & ~HEARTS) & ~DIAMONDS) & ~CLUBS)

enum {
    CARD     = 0x1f000,

    SPADES   = 0xa0,
    HEARTS   = 0xb0,
    DIAMONDS = 0xc0,
    CLUBS    = 0xd0,

    ACE      = 0x1,
    JACK     = 0xb,
    KNIGHT   = 0xc,
    QUEEN    = 0xd,
    KING     = 0xe,
};

int
new_card(void) {
    int rnd;
    int ret = CARD;

    /* replace this with whichever way you usually get a random int */
    rnd = arc4random();

    /* randomly select suit */
    switch (abs(rnd % 4)) {
    case 0:
        ret |= SPADES;
        break;
    case 1:
        ret |= HEARTS;
        break;
    case 2:
        ret |= DIAMONDS;
        break;
    case 3:
        ret |= CLUBS;
        break;
    }

    /* add a random number between 1-15 to return */
    ret += abs(rnd % 14) + 1;

    /* if return is a knight, recursively run until it isn't */
    if (CLEAN(ret) == KNIGHT)
        ret = new_card();

    return ret;
}

int
main(int argc, char **argv) {
    setlocale(LC_ALL, "");

    printf("%lc\n", new_card());

    /*
     * CARD     = 0x1f000 == 0b11111000000000000 | (OR)
     * HEARTS   = 0x000b0 == 0b00000000010110000 | (OR)
     * QUEEN    = 0x0000d == 0b00000000000001101 | (OR)
     *          = 0x1f0bd == 0b11111000010111101 == U+1F0BD == 🂽
     */
    printf("%lc\n", CARD | HEARTS | QUEEN);

    return 0;
}