Re: Linking problem with X3

On 10/03/2016 6:30 PM, Mikael Asplund wrote:
> Hi!
>
> If I take the x3 calc9 example in Boost 1.60 and change in config.hpp from:
>
> typedefx3::with_context<error_handler_tag, std::/reference_wrapper/<error_handler_type>
> const, phrase_context_type>::/type/
>
> ...to:
>
> typedefx3::with_context<error_handler_tag, std::/reference_wrapper/<error_handler_type>
> const, x3::unused_type>::/type/
>
> ...and also change in main.cpp:
>
> boolsuccess= phrase_parse(iter, end, parser, /space/, ast);
>
> ...to:
>
> boolsuccess= parse(iter, end, parser, ast);
>
> ...I get a link problem:
>
[...]
>
> The question is why is this screws up the linking (/BOOST_SPIRIT_INSTANTIATE/ macro seems
> to be instantiating the needed type)?
>
> Anyone out there with more experience with this? I'm utterly confused, and I've been
> trying what I can think of for days!

     typedef x3::with_context<
         error_handler_tag
       , std::reference_wrapper<error_handler_type> const>::type
     context_type;

(i.e. don't inject the x3::unused_type context)

Regards,
-- 
Joel de Guzman
http://www.ciere.com
http://boost-spirit.com
http://www.cycfi.com/


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