From: Radoslaw Zarzynski <rzarzyns@redhat.com>
Date: Tue, 21 Sep 2021 21:28:02 +0000 (+0000)
Subject: crimson/common: assert_moveable() doesn't depend on 3rd party's always_false<>.
X-Git-Tag: v17.1.0~834^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=06e19d817e6f480c37a2dca556d1f293c975fc9d;p=ceph.git

crimson/common: assert_moveable() doesn't depend on 3rd party's always_false<>.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
---

diff --git a/src/crimson/common/utility.h b/src/crimson/common/utility.h
index 42c199a959df..6fc50bb1c1a1 100644
--- a/src/crimson/common/utility.h
+++ b/src/crimson/common/utility.h
@@ -5,12 +5,16 @@
 
 #include <type_traits>
 
+namespace _impl {
+  template <class T> struct always_false : std::false_type {};
+};
+
 template <class T>
 void assert_moveable(T& t) {
     // It's fine
 }
 template <class T>
 void assert_moveable(const T& t) {
-    static_assert(always_false<T>::value, "unable to move-out from T");
+    static_assert(_impl::always_false<T>::value, "unable to move-out from T");
 }