Use of void pointer variables

such as void *p= ...;
So what does *p mean.


warning:dereferencing ' void * ' pointer [enabled by default]
Error:invalid Use of void expression


The pointer variable defined by the void* type only receives the address of the object and does not have the type concept of the object. So the pointer variable is not directly used
"* pointer variable" to access the object, only after coercion type conversion to "indirect" access: * (type*) pointer variable, you must
Give the correct type.




Like what:
void *accept_request (void *pclient)
{
int client = * (int *) pclient; That's the right way to do it.
。。。
}




If you follow the wording below, you will report the above error.
void *accept_request (void *pclient)
{
int client = *pclient; The wrong wording
。。。
}