- Fix ambiguous specialization in core/datatype
- [Config] Turn #errors into #warnings
- Qualify recursive calls to `apply` to make sure the right function is selected
- Remove usages of when_valid to workaround ambiguous specializations
- Use multiline comments to remove some GCC warnings with LaTeX's double backslash
- Specialize operators::of in the boost::hana::operators namespace
- Manually perform more conversions in constexpr-context
- Workaround the lack of support for constexpr-but-non-const member functions
- Disambiguate unqualified uses of size_t with hana::size_t and ::size_t
