Hauptmann Peter wrote:

Hi, I noticed that boost/detail/atomic_count.hpp uses the intrinsic verisons of _InterlockedIncrement, _InterlockedDecrement only for Win64 builds.

is there a reason? it is documented for VC 2003 without target platform restrictions (and it's "known to work" on VC6, too).

I think that the reason is that there's no portable way of declaring the intrinsics except by including <windows.h>, something that many people would strongly object to because of the evil macros.