On 05/04/19 19:06 +0100, Jonathan Wakely wrote:
* doc/xml/manual/status_cxx2020.xml: Update status. * include/std/variant (visit<R>): Define for C++2a (P0655R1). * testsuite/20_util/variant/visit_r.cc: New test.
This implementation is wrong, the conversions to R need to happen for each possible invocation, which makes it more complicated (we need to duplicate some code). I'll fix it next week.