Re: [boost] [wave] preprocessor directives in output

On 01/21/2014 04:20 PM, pmenso57@comcast.net wrote:

Eric, just be very careful about what macros expand when. E.g. the expression:

!defined(BOOST_NO_CXX11_RVALUE_REFERENCES)

will get expanded on the first preprocessor pass to something like

!defined(1)

(or whatever it expands to)

Thanks for the warning, and that makes sense, but it's not what I'm seeing. I'm seeing wave spit out: # if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) instead of: # if !defined(1) Why would that be? Regardless, I can turn off expansion of this macro during preprocessing with wave's -N switch, so there's a fix should I ever need it. Eric