Method operator+

include/boost/leaf/error.hpp:610–614

        template <class T>
        friend T operator+( inject_loc loc, T && x ) noexcept(!BOOST_LEAF_CFG_CAPTURE)
        {
            x.load_source_location_(loc.file, loc.line, loc.fn);
            return std::move(x);
        }
    };
} // namespace detail