[PATCH] libstdc++: Implement LWG 3553 change to split_view

[Patrick Palka via Gcc-patches]

libstdc++-v3/ChangeLog:

        * include/std/ranges (split_view::_OuterIter::value_type::begin):
        Remove the non-const overload, and remove the copyable constraint
        on the const overload as per LWG 3553.
---
 libstdc++-v3/include/std/ranges | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index bf85b1629f0..49babe81437 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -2932,14 +2932,8 @@ namespace views::__adaptor
 
            constexpr _InnerIter<_Const>
            begin() const
-             requires copyable<_OuterIter>
            { return _InnerIter<_Const>{_M_i}; }
 
-           constexpr _InnerIter<_Const>
-           begin()
-             requires (!copyable<_OuterIter>)
-           { return _InnerIter<_Const>{std::move(_M_i)}; }
-
            constexpr default_sentinel_t
            end() const
            { return default_sentinel; }
-- 
2.32.0.93.g670b81a890