#include <cstdio>
#include <algorithm>
using namespace std;

int main(int argc, char **argv)
{
//    freopen("output.txt", "w", stdout);
    char S[50];

    unsigned long a = 0;
    unsigned long *b;
 
    b = &a;

    a = \'C\';
    a = a | (\'B\' << 8);
    a = a | (\'A\' << 16);
    a = a | (\'\\0\' << 24);

    itoa(a, S, 2);

    printf("RESULT : %s\\n", (char*)b);
    printf("------ : %s\\n", S);

//------------------------------
    int c = 0;
    int *d;

    d = &c;

    c = \'D\';

    c = c | (\'C\' << 8);
    c = c | (\'B\' << 16);
    c = c | (\'A\' << 24);
    c = c | (\'\\0\' << 32);

    itoa(c, S, 2);

    printf("RESULT : %s\\n", (char*)d);
    printf("------ : %s\\n", S);

//------------------------------
    printf("\\n");
    char S2[] = "ABCD";

    printf("RESULT : %s\\n", S2);
    for(int i=0;i<5;i++)
        printf("S2[%d] : %x : %c\\n", i, &S2[i], S2[i]);   

//------------------------------
    printf("\\n문자열로 바꿈\\n");
    char S3[10];
    memcpy(S3, b, 4);
    printf("b : CBA  : %s\\n", S3);

    memcpy(S3, d, 4);
    printf("d : DCBA : %s\\n", S3);
   
    return 0;
}

-------------------------------------------------

RESULT : CBA
------ : 10000010100001001000011
RESULT : DCBAH
------ : 1000001010000100100001101000100

RESULT : ABCD
S2[0] : 12ff34 : A
S2[1] : 12ff35 : B
S2[2] : 12ff36 : C
S2[3] : 12ff37 : D
S2[4] : 12ff38 :

문자열로 바꿈
b : CBA  : CBA
d : DCBA : DCBA儆儆儆儆
Press any key to gozarany

-----------------------------------------------------

중요한 부분은 여기<-

    char S[50];

    unsigned long a = 0;
    unsigned long *b;
 
    b = &a;

    a = \'C\';
    a = a | (\'B\' << 8);
    a = a | (\'A\' << 16);
    a = a | (\'\\0\' << 24);

    itoa(a, S, 2);

    printf("RESULT : %s\\n", (char*)b);
    printf("------ : %s\\n", S);

<---


질문 1:
char로 배열잡아서 하면 정방향으로 주소가 저장되는데

왜 int에다가 비트연산으로 때려박고 출력하면 역방향으로 달려가는 걸까?

용자모집