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 3206, 5/161 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   ±èº´±Ç
   http://blog.naver.com/jeny3237
   [re] c¾ð¾î Æ÷ÀÎÅÍ Áú¹®

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_programming&no=6510 [º¹»ç]


===============================================================================

>Æ÷ÀÎÅÍÀÇ °³³ä¿¡ ´ëÇؼ­ ¹æ±Ý °øºÎÇߴµ¥¿ä.
>*pa¶ó´Â Æ÷ÀÎÅÍ¿Í a¶ó´Â º¯¼ö°¡ ÀÖ´Ù°í ÇÏ°í,
>pa = &a¸¦ ÇßÀ»¶§
>
>pa == &aÀÌ°í
>*pa == a¶ó°í ÀÌÇظ¦ Çߴµ¥¿ä.
>
>±×·³ °á±¹¿¡ pa´Â aÀÇ ÁÖ¼Ò°ªÀ̴ϱî,
>a = pa¸¦ Çؼ­ a°ª¿¡ pa°ªÀ» ´ëÀÔÇÏ°í a¸¦ Ãâ·ÂÇßÀ»¶§
>aÀÇ ÁÖ¼Ò°ªÀÌ Ãâ·ÂµÇ¾ß ÇÑ´Ù°í »ý°¢Çߴµ¥ ±×·¸Áö ¾Ê³×¿ä...
>¿Ö ÀÌ°Ô À߸ø‰ç´ÂÁö ¾Ë°í½Í½À´Ï´Ù.
===============================================================================



ÇØÄ¿½ºÄð¿¡¼­ ±×³ª¸¶ Á¦´ë·Î µÈ Áú¹®°°Àº Áú¹®À»
¿À·£¸¸¿¡ º¸°Ô µÇ³×¿ä.

±úÀÛ±úÀÛ ¹¹ Á» ÇÏ´Ù°¡ Å©·¢¿¡ ¼º°øÇؼ­
ÇØÅ· ÃÊ°í¼ö¶ó°í ÀÚ¶ûÇÏ´Â Ãʵùº¸´Ù ÈξÀ °ªÁø ±ÛÀ̳׿ä.

ÀÏ´Ü Á¤Á¤ÇÏÀÚ¸é 'ÁÖ¼Ò°ª'À̶õ Ç¥ÇöÀ» »ç¿ëÇÏ´Â °É·Î º¸¾Æ
¿­Ç÷°­ÀÇC¸¦ º» °Í °°Àºµ¥ 'ÁÖ¼Ò°ª'À̶õ Ç¥ÇöÀº ¿Ã¹Ù¸¥ Ç¥ÇöÀÌ ¾Æ´Õ´Ï´Ù.
'ÁÖ¼Ò'°¡ ¿ÇÀº Ç¥ÇöÀÔ´Ï´Ù.


===================================
±×·³ °á±¹¿¡ pa´Â aÀÇ ÁÖ¼Ò°ªÀ̴ϱî,
a = pa¸¦ Çؼ­ a°ª¿¡ pa°ªÀ» ´ëÀÔÇÏ°í a¸¦ Ãâ·ÂÇßÀ»¶§
===================================

°©Àڱ⠶á±Ý¾øÀÌ a = pa°¡ ³ª¿À³×¿ä.
Àú ¶æÀº º¯¼ö a¿¡ Æ÷ÀÎÅÍ pa¿¡ ÀúÀåµÈ ¸Þ¸ð¸® ÁÖ¼Ò¸¦
ÀúÀåÇ϶ó´Â ¶æÀε¥ ¿ëµµ¿¡ ¸ÂÁö ¾Ê´Â ÄÚµùÀÔ´Ï´Ù.
Àú·± ÄÚµùÀ» Çغ» ¿ª»ç°¡ ¾ø¾î¼­ ÄÄÆÄÀÏ ¿¡·¯°¡ ¶ß´ÂÁö
¸ð¸£°Ú³×¿ä.

½ÅÅؽº ¿¡·¯, ½Ã¸¸Æ½ ¿¡·¯ µÑ ´Ù Æ÷ÇÔÀÌ µÇ´Â ¿¡·¯ÀÔ´Ï´Ù.
´ÔÀÌ ±Ã±ÝÇØÇÏ´Â ºÎºÐÀ» ÄÚµù°ú ÁÖ¼®À» ÅëÇØ Çѹø ÀÛ¼ºÇغýÀ´Ï´Ù.

C¾ð¾î¿¡¼­ *ÀÇ ¶æÀÌ 3°¡Áö°¡ ÀÖ½À´Ï´Ù.
°ö¼À¿¬»êÀÚ, ¸Þ¸ð¸® ÁÖ¼Ò ÂüÁ¶, ³ª¸ÓÁö Çϳª´Â ±â¾ïÀÌ ¾È ³²
(C¸¦ ¹è¿îÁö 8³â µÆ½À´Ï´Ù ^^;; ÀÌÁ¨ ±â¾ïÀÌ...)


#include <stdio.h>

int main(void)
{
    int a = 10; // aÀÇ ÁÖ¼Ò(&a)°¡ 0x1004¶ó°í °¡Á¤ÇÏ°ÚÀ½.
    int *pA;  // pAÀÇ ÁÖ¼Ò(&pA)°¡ 0x1000À̶ó°í °¡Á¤ÇÏ°ÚÀ½.

    pA = &a; // Æ÷ÀÎÅÍ pA¿¡ aÀÇ ÁÖ¼Ò ÀúÀå

    /*

                      ¸Þ¸ð¸® ±¸Á¶
                      [                 ] int a;
                      [                 ] int a;  
                      [                 ] int a;
       0x1004 [      10      ] int a;
                      [                 ] int *pA;
                      [                 ] int *pA;
                      [                 ] int *pA;
       0x1000 [ 0x1004  ] int *pA;
    */

    printf("a : %d (0x%x), pA : %d (0x%x), *pA : %d (0x%x)£Ün",
    a, &a, pA, &pA, *pA, &(*pA));
    /*
        Ãâ·Â °á°ú
        10 (0x1004), 0x1004 (0x1000), 10 (0x1004
    */

    return 0;
}




  Hit : 3864     Date : 2015/01/30 10:38



    
±èº´±Ç Á¦°¡ ½º¸¶Æ®ÆùÀ¸·Î ´äº¯À» ¾´ °Å¶ó¼­ ÄÄÆÄÀϵµ ¸øÇغ¸°í ±×³É ¹«ÀÛÁ¤
¼Ò½ºÄڵ常 ÀÛ¼ºÇÏ°í ´äº¯À» ¿Ã¸°°Çµ¥...
ÄÄÇ»ÅÍ·Î È®ÀÎÇغ¸´Ï Á¦°¡ ÀǵµÇÑ ¹Ù¿Í ¶È°°ÀÌ ³ª¿À³×¿ä.
¾Æ·¡°¡ ¿Ïº®ÇÑ ¼Ò½º ÄÚµåÀÌ´Ï ÂüÁ¶Çϼ¼¿ä.

#include <stdio.h>

int main(void)
{
int a = 10; // aÀÇ ÁÖ¼Ò(&a)°¡ 0x1004¶ó°í °¡Á¤ÇÏ°ÚÀ½.
int *pA; // pAÀÇ ÁÖ¼Ò(&pA)°¡ 0x1000À̶ó°í °¡Á¤ÇÏ°ÚÀ½.

pA = &a; // Æ÷ÀÎÅÍ pA¿¡ aÀÇ ÁÖ¼Ò ÀúÀå

/*

¸Þ¸ð¸® ±¸Á¶
[ ] int a;
[ ] int a;
[ ] int a;
0x1004 [ 10 ] int a;
[ ] int *pA;
[ ] int *pA;
[ ] int *pA;
0x1000 [ 0x1004 ] int *pA;
*/

printf("a : %d (0x%x), pA : 0x%x (0x%x), *pA : %d (0x%x)£Ün",
a, &a, pA, &pA, *pA, &(*pA));
/*
Ãâ·Â °á°ú
10 (0x1004), 0x1004 (0x1000), 10 (0x1004)
*/

return 0;
}
2015/01/31  
3126   Çб³ ÇÁ·ÎÁ§Æ® Áú¹®ÀÔ´Ï´Ù.     rlagusgh125
03/29 2866
3125   Àç±ÍÈ£Ãâ ¼Ò½ºÄÚµå ºÐ¼®.....     h@cking2013
03/24 3343
3124   ¾È³çÇϼ¼¿ä c++¹è¿ì´Â ÇлýÀÔ´Ï´Ù[3]     axio93
03/19 3805
3123   c¾ð¾î »ðÀÔ Á¤·Ä Áß °£Á¢Á¤·Ä Áú¹®µå·Á¿ä[1]     ljh7009
03/19 4215
3122   ÇÁ·Î±×·¡¹Ö ÀÔ¹®ÀÚ °øºÎ ¹æÇâ..[1]     mwm0202
03/19 3033
3121   ÆÄÀ̽ã Ã¥ Ãßõ ºÎŹµå¸³´Ï´Ù[1]     dkflvkdnj
03/16 3623
3120   c¾ð¾î Ãʺ¸ÀÚÀε¥ ÄÄÆÄÀÏ·¯ âÀÇ ¸ð¸£´Â À̸§µé ¼³¸íÁ»¿ä[3]     songjo12
03/10 3314
3119   ¸Þ¸ð¸® µ¿ÀÛ °úÁ¤ Áß segment¿¡ ´ëÇؼ­..     hallohackers
02/26 3099
3118   µµ¼­°ü¿¡ ¾î¼Àºí¸® ±âÃÊ¿¡ °üÇؼ­ Áú¹®ÀÖ½À´Ï´Ù.[4]     ghgk97
02/11 3331
3117   µµ´ëü.....[3]     h@cking2013
02/10 2862
3116   c¾ð¾î Æ÷ÀÎÅÍ Áú¹®[5]     moomyung93
01/30 2958
    [re] c¾ð¾î Æ÷ÀÎÅÍ Áú¹®[1]     ±èº´±Ç
01/30 3863
3114   C¾ð¾î ÀÀ¿ë´É·ÂÀ» Å°¿ì±â À§ÇÑ ¹æ¹ýÀ» °¡¸£ÃÄÁֽñ⠹ٶø´Ï´Ù.[2]     OzShock
01/23 3125
3113   ¿À·ùÄÚµåÁú¹®ÀÌ¿ä[1]     dmsdls00
01/22 3568
3112   ÀÌ ¿À·ù ±Ã±ÝÇÑ°Í     dmsdls00
01/20 3400
3111   Lockbit °ü·ÃµÈ Áú¹®ÀÔ´Ï´Ù.     jkendud
01/19 3595
3110   c++ ¼ÒÄÏÇÁ·Î±×·¡¹Ö     qaz4564
01/14 7139
3109   ÇÁ·Î±×·¡¹Ö ¾ð¾î °ü·Ã Áú¹®[2]     niteofhunter
12/23 2963
3108   ÇöÁ¦ ³×Æ®¿öÅ© »óȲÀε¥ ¼­·Î Á¢¼ÓÀ̾ȵǿä,,     alsrbdu
12/17 3289
3107   À¥ ÇÁ·Î±×·¡¹ÖÀÌ ¹«¾ùÀΰ¡¿ä? [3]     kimhacker123
12/10 3769
[1][2][3][4] 5 [6][7][8][9][10]..[161]

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