Hi, I have some SIMD classes where inlining of operators are important even in debug code. In other words: these parts are so performance critical that I compile them with some tweaked compiler flags, because otherwise the application becomes undebuggable. At least gcc [__inline __attribute__((__always_inline__,__nodebug__))] and MSVC2005 [__forceinline] support extra inline statements. Hence in order to use boost::operators I need to tweak operators.hpp to be able to turn on the forced inlining. I'm doing it locally anyway but I'm curious if this technique may be of interest for common use or for other boost parts respectively? Best regards Olaf Krzikalla