用C进行类型转换

Question

In my code I get this error :

expected ‘const void *’ but argument is of type ‘struct in_addr’

I am using memcmp can i type cast struct in_addr to const void* as const void * (struct in_addr )

Answer 1

You need to cast the address of your object, not the object itself:

(const void *)&my_obj

But in fact, such casts are implict, so you can just use:

&my_obj