Boost.Hana: boost/hana/fwd/core Directory Reference

| Boost.Hana 1.7.1 Your standard library for metaprogramming |

core Directory Reference

## Files
file | common.hpp
| Forward declares `boost::hana::common` and `boost::hana::common_t`.
file | default.hpp
| Forward declares `boost::hana::default_` and `boost::hana::is_default`.
file | is_a.hpp
| Forward declares `boost::hana::is_a` and `boost::hana::is_an`.
file | make.hpp
| Forward declares `boost::hana::make`.
file | tag_of.hpp
| Forward declares `boost::hana::tag_of` and `boost::hana::tag_of_t`.
file | to.hpp
| Forward declares `boost::hana::to` and related utilities.
file | when.hpp
| Forward declares `boost::hana::when` and `boost::hana::when_valid`.