Why can't static_cast a double void pointer?

Question

Consider the following piece of code:

void **v_dptr(nullptr);
int  **i_dptr = static_cast(v_dptr);

The above example produces

Answer 1

There are good answers for Q1, and the answer to Q2 depends a lot on the intention. If void **v_dptr is intended to be a pointer to a "generic" void* which you know is actually a int* and you want to cast accordingly, the following might be what you want:

int *i_ptr = static_cast(*v_dptr);
int **i_dptr = &i_ptr;