From f9129fc1f9284bceef6ad542e4867aa63c549386 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@scylladb.com>
Date: Sun, 4 Oct 2020 10:21:28 +0300
Subject: [PATCH] utils: to_range(): relax constraint

The input range to utils::to_range() should be indeed a range,
but clang has trouble compiling <ranges> which causes it to fail.

Relax the constraint until this is fixed.
---
 utils/ranges.hh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/utils/ranges.hh b/utils/ranges.hh
index e7ca890700..f533cd203c 100644
--- a/utils/ranges.hh
+++ b/utils/ranges.hh
@@ -25,7 +25,13 @@
 
 namespace ranges {
 
+#ifndef __clang__
 template <std::ranges::range Container, std::ranges::range Range>
+#else
+// 'Range' should be constrained to std::ranges::range, but due to
+// problems between clang and <ranges>, it cannot be
+template <std::ranges::range Container, typename Range>
+#endif
 Container to(const Range& range) {
     return Container(range.begin(), range.end());
 }