https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86977
--- Comment #2 from João Neto <joao at neto dot pt> --- Hi Jonathan! Thanks for the quick reply! Two follow-up questions: (1) Shouldn't it be also flagged as an error in `gcc-6` and `gcc-7` with `-std=c++17`? (2) How can I reliably find the node-type allocated by the map if I'd want to use `-std=c++17`? Isn't it implementation-defined? https://stackoverflow.com/questions/49736817/stdunordered-map-with-boostinterprocess-allocator-in-shared-memory-drawbac/49738871#49738871
