clang-15 warning: definition of implicit copy constructor for 'actor<boost::log::expressions::aux::unary_function_terminal<boost::log::expressions::has_attribute<void>>>' is deprecated because it has a user-declared copy assignment operator

[k15tfu]

Hi!

In file boost/phoenix/core/actor.hpp:

boost/phoenix/core/actor.hpp:228:39: error: definition of implicit copy constructor for 'actor<boost::log::expressions::aux::unary_function_terminal<boost::log::expressions::has_attribute<void>>>' is deprecated because it has a user-declared copy assignment operator [-Werror,-Wdeprecated-copy]
        BOOST_DELETED_FUNCTION(actor& operator=(actor const&))
                                      ^
[...]
1 error generated.

[djowel]

Instead of copy-pasting the warning message, how about analyzing the actual problem and telling why this is a phoenix issue?

[nickwilliams-zaxiom]

I'm also seeing this in clang-14.

[Kojoley]

I'm confident that it was fixed in 1.81 by #108. If you still experience the warning - please post Boost version, compiler version, compiler command line and a reproducer.

[nickwilliams-zaxiom]

Thanks. I was able to fix our warning by putting those pragmas around our import of qi.hpp.