Why are (member) function pointers behaving so weirdly in Visual C++?

Question

I\'ve had a really bizarre problem that I\'ve reduced to the following test case:

#include 
#include 

Answer 1

It turns out Visual C++'s linker can merge functions with identical definitions into one.
Whether that's legal or not according to C++, I have no idea; it affects observable behavior, so it looks like a bug to me. Someone else with more information may want to chime in on that though.