From 8db8f2249020cd44918ffdf17de40b2075607088 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Thu, 9 May 2024 17:26:26 -0700
Subject: [PATCH] Optimize join_view

---
 include/fmt/ranges.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/fmt/ranges.h b/include/fmt/ranges.h
index ed203ae7..3a37c772 100644
--- a/include/fmt/ranges.h
+++ b/include/fmt/ranges.h
@@ -628,6 +628,8 @@ struct formatter<join_view<It, Sentinel, Char>, Char> {
                                  join_view<It, Sentinel, Char>&&>;
 
  public:
+  using nonlocking = void;
+
   template <typename ParseContext>
   FMT_CONSTEXPR auto parse(ParseContext& ctx) -> const Char* {
     return value_formatter_.parse(ctx);