https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71098
Bug ID: 71098 Summary: uniform initialization for nested tuples work in c++11/14 mode but should only work >=c++17 Product: gcc Version: 6.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: lts-rudolph at gmx dot de Target Milestone: --- uniform initialization for nested std::tuple works in c++11/14 mode but should work not before c++17. The following line compiles without warning/error in --std=c++11/14 std::tuple<std::tuple<int,float> > t2{{ 1,2.2}};