목록전체 글 (418)

Creative Code

pointer5.c(함수포인터)

#include int add(int a, int b) { return a + b; } int substract(int a, int b) { return a-b; } int main(void) { int(*fp)(int, int); fp = &add; int re = (*fp)(4,3); printf("re : %d\n",re); fp = &substract; re = (*fp)(4,3); printf("re : %d\n",re); return 0; }
C Programming 2023. 8. 2. 15:59
pointer4.c(이중포인터)

#include int main(void) { int a; int *pa; int **ppa; a= 100; pa = &a; ppa = &pa; **ppa = 200; printf("a: %d\n",a); return 0; }
C Programming 2023. 8. 2. 15:54
pointer3.c(char형 포인터참조)

#include int main(void) { int a = 0x12345678; char *p; p = (char*) &a; printf("*p : 0x%x\n",*p); return 0; // 0x78출력 }
C Programming 2023. 8. 2. 15:53
pointer3.c(int형 포인터 참조)

#include int main(void) { int a = 0x12345678; int *p; p = &a; printf("*p : 0x%x\n",*p); return 0; }
C Programming 2023. 8. 2. 15:51
pointer2.c(포인터)

#include int main(void) { int i; int nums[5]; int *p; p = &nums[1]; *p = 100; printf("*p :%d\n",*p); return 0; }
C Programming 2023. 8. 2. 15:49
pointer.c(포인터)

#include int main(void) { int a; int *p; a = 100; p = &a; *p = 200; printf("a : %d\n",a); return 0; }
C Programming 2023. 8. 2. 15:45
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