https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93818
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:a5b213dda50aca90637979f13da2eb377eff9930 commit r10-6716-ga5b213dda50aca90637979f13da2eb377eff9930 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Feb 18 23:22:25 2020 +0000 libstdc++: Fix compilation of <ranges> with Clang (PR 93818) PR libstdc++/93818 * include/std/ranges (_RangeAdaptor): Add deduction guide. (filter_view::_Iterator): Add alias _Vp_iter and use in place of iterator_t<_Vp>. (filter_view::_Iterator::_S_iter_cat()): Add 'typename'. (transform_view::_Iterator): Add alias _Base_iter and use in place of iterator_t<_Base>. (transform_view::_Iterator::_S_iter_cat()): Add 'typename'. (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases. (join_view::_Iterator::_S_iter_cat()): Add 'typename'. (split_view::_InnerIter::_S_iter_cat()): Likewise.