According to CPP Reference this is currently not okay:

"If expression represents the address A of a byte in memory but A does not satisfy the alignment requirement of T, then the resulting pointer value is unspecified."

https://en.cppreference.com/w/cpp/language/static_cast
 

-----Ursprüngliche Nachricht-----
Von: organicoman via Std-Proposals <std-proposals@lists.isocpp.org>

No it could not, and it is not allowed. The only thing you will MAYBE get is a misaligned pointer to a double memory location, and you should not dereference that pointer, because of aliasing incompatibility otherwise UB.

 

Try the following code:

#include <stdio.h>

int main()
{
    char arr[8];
    double* ptr = static_cast<double*>(static_cast<void*>(arr+3));