From: Patrick Palka <ppalka@redhat.com>
Date: Sat, 19 Jun 2021 00:50:22 +0000 (-0400)
Subject: libstdc++: Implement LWG 3553 changes to split_view
X-Git-Tag: releases/gcc-11.3.0~766
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01e1cadac23f71472a0633cec03f6471cf4686aa;p=thirdparty%2Fgcc.git

libstdc++: Implement LWG 3553 changes to split_view

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.

(cherry picked from commit 15736576df739fdcc5e795961dae30c7b0c87967)
---

diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index b237db6d39b8..aebe1b90076f 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -2867,14 +2867,8 @@ 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; }