int?main(void)

{

int?a?=?10;

int?*p1?=?&a;

char?ch?=?'c';

char?*p2?=?&ch;

printf("p1=>size:%d?p2=>size:%d\n",

sizeof(p1),?sizeof(p2));

return?0;

}

Ubuntu編譯后的warning

src/pointer_basic.c: In function ‘main’:

src/pointer_basic.c:26:4: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long unsigned int’ [-Wformat=]

sizeof(p1), sizeof(p2));

^

src/pointer_basic.c:26:4: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long unsigned int’ [-Wformat=]

總結

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