https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101782
--- Comment #5 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:7b1de3eb9ed3f8dde54732d88520292c5ad1157d commit r12-2766-g7b1de3eb9ed3f8dde54732d88520292c5ad1157d Author: Jonathan Wakely <jwak...@redhat.com> Date: Thu Aug 5 13:34:00 2021 +0100 libstdc++: Move attributes that follow requires-clauses [PR101782] As explained in the PR, the grammar in the Concepts TS means that a [ token following a requires-clause is parsed as part of the logical-or-expression rather than the start of an attribute. That makes the following ill-formed when using -fconcepts-ts: template<typename T> requires foo<T> [[nodiscard]] int f(T); This change moves all attributes that follow a requires-clause to the end of the function declarator. Signed-off-by: Jonathan Wakely <jwak...@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/101782 * include/bits/ranges_base.h (ranges::begin, ranges::end) (ranges::rbegin, ranges::rend, ranges::size, ranges::ssize) (ranges::empty, ranges::data): Move attribute to the end of the declarator. * include/bits/stl_iterator.h (__gnu_cxx::__normal_iterator) (common_iterator): Likewise for non-member operator functions. * include/std/ranges (views::all, views::filter) (views::transform, views::take, views::take_while, views::drop) (views::drop_while, views::join, views::lazy_split) (views::split, views::counted, views::common, views::reverse) (views::elements): Likewise. * testsuite/std/ranges/access/101782.cc: New test.
