[libcxx] r328054 - Implement LWG 3039 and 3041 - 'Treating Unnecessary decay'.

[Marshall Clow via cfe-commits]

Author: marshall
Date: Tue Mar 20 15:37:37 2018
New Revision: 328054

URL: http://llvm.org/viewvc/llvm-project?rev=328054&view=rev
Log:
Implement LWG 3039 and 3041 - 'Treating Unnecessary decay'.

Modified:
    libcxx/trunk/include/future
    libcxx/trunk/include/thread

Modified: libcxx/trunk/include/future
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/future?rev=328054&r1=328053&r2=328054&view=diff
==============================================================================
--- libcxx/trunk/include/future (original)
+++ libcxx/trunk/include/future Tue Mar 20 15:37:37 2018
@@ -2021,7 +2021,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename decay<_Fp>::type, 
+                      typename __uncvref<_Fp>::type, 
                       packaged_task
                       >::value
                   >::type
@@ -2032,7 +2032,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename decay<_Fp>::type, 
+                      typename __uncvref<_Fp>::type, 
                       packaged_task
                       >::value
                   >::type
@@ -2150,7 +2150,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename decay<_Fp>::type, 
+                      typename __uncvref<_Fp>::type, 
                       packaged_task
                       >::value
                   >::type
@@ -2161,7 +2161,7 @@ public:
               class = typename enable_if
               <
                   !is_same<
-                      typename decay<_Fp>::type, 
+                      typename __uncvref<_Fp>::type, 
                       packaged_task
                       >::value
                   >::type

Modified: libcxx/trunk/include/thread
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/thread?rev=328054&r1=328053&r2=328054&view=diff
==============================================================================
--- libcxx/trunk/include/thread (original)
+++ libcxx/trunk/include/thread Tue Mar 20 15:37:37 2018
@@ -298,7 +298,7 @@ public:
     template <class _Fp, class ..._Args,
               class = typename enable_if
               <
-                   !is_same<typename decay<_Fp>::type, thread>::value
+                   !is_same<typename __uncvref<_Fp>::type, thread>::value
               >::type
              >
         _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS