3 commits

Author	SHA1	Message	Date
John Preston	cdda7f8f9a	Allow not type-erased producers.	2017-11-16 07:59:05 +04:00
John Preston	ed061252a5	Move to Xcode 9.0 and fix errors in Clang build.	2017-11-16 07:59:05 +04:00
John Preston	3db696d52f	Add rpl::combine_previous() operator.	2017-11-16 07:59:04 +04:00