From: Yao Zongyou <yaozongyou@vip.qq.com>
Date: Tue, 27 Aug 2019 12:53:19 +0000 (+0800)
Subject: osdc: using decltype(auto) instead of trailing return type declaration
X-Git-Tag: v15.1.0~1716^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=6a9d8d53f50d41c86937fb65f19e6a74ac5ce864;p=ceph.git

osdc: using decltype(auto) instead of trailing return type declaration

Signed-off-by: Yao Zongyou <yaozongyou@vip.qq.com>
---

diff --git a/src/osdc/Objecter.h b/src/osdc/Objecter.h
index 96c2ab0a2323..3a21cffbc6f8 100644
--- a/src/osdc/Objecter.h
+++ b/src/osdc/Objecter.h
@@ -2123,8 +2123,7 @@ private:
   // here or you will have great woe and misery.
 
   template<typename Callback, typename...Args>
-  auto with_osdmap(Callback&& cb, Args&&... args) const ->
-    decltype(cb(*osdmap, std::forward<Args>(args)...)) {
+  decltype(auto) with_osdmap(Callback&& cb, Args&&... args) {
     shared_lock l(rwlock);
     return std::forward<Callback>(cb)(*osdmap, std::forward<Args>(args)...);
   }