Most efficient replacement for IsBadReadPtr?

Question

I have some Visual C++ code that receives a pointer to a buffer with data that needs to be processed by my code and the length of that buffer. Due to a bug outside my contro

Answer 1

If the variable is uninitialized you are hosed. Sooner or later it's going to be an address for something you don't want to play with (like your own stack).

If you think you need this, and (uintptr_t)var < 65536 does not suffice (Windows does not allow allocating the bottom 64k), there is no real solution. VirtualQuery, etc. appear to "work" but sooner or later will burn you.