Can I Allocate a specific memory address using pointers in c++?

Question

Can I Allocate a specitic memory address using pointers in c++ ?

For example: Allocate This memory address 25D4C3FA and put 4 in it.

Answer 1

You can request a specific address through VirtualAlloc on Windows, and I expect other operating systems do the same, but there are no guarantees and no platform-independent means.