[boost] noexcept BOOST_EXPLICIT_OPERATOR_BOOL

Hi, Although I am not entirely convinced that any not throwing function (except for moves) should be marked as noexcept, I can see that noexcept starts to get into Boost. explicit operator bool appears to be a good candidate, but macro BOOST_EXPLICIT_OPERATOR_BOOL does not offer it. So I have to choose: use the macro or noexcept. Perhaps the macro could be expanded to give an option to add noexcept, but that would spawn two macros (BOOST_EXPLICIT_OPERATOR_BOOL and BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL) into four. Are four macros for almost the same purpose acceptable? Or do I have to abandon the idea of making the operator noeaxcept. Are there any recommendations? Regards, &rzej