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const int* const pointer 본문
// http://www.joinc.co.kr/modules/moniwiki/wiki.php/Site/C/Documents/Tip#s-2 #include <stdio.h> void main() { const int i = 3; //i = 4; // compile error int* p = (int*)&i; printf("%d\t%d\n", i, *p); *p = 4; printf("%d\t%d\n", i, *p); const int ci1 = 4, ci2 = 8; // canNOT change value, can change the address const int* cip = &ci1; printf("%d\t%d\t%d\n", ci1, ci2, *cip); cip = &ci2; //*cip = 0; // compile error printf("%d\t%d\t%d\n", ci1, ci2, *cip); int i1 = 4, i2 = 8; // can change value, canNOT change the address int* const ipc = &i1; printf("%d\t%d\t%d\n", i1, i2, *ipc); //ipc = &i2; // compile error *ipc = 0; printf("%d\t%d\t%d\n", i1, i2, *ipc); const int ci3 = 3, ci4 = 4; const int* const cipc = &ci1; //cipc = &ci2; //*cipc = 0; printf("%d\t%d\t%d\n", ci3, ci4, *cipc); }
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