From 3272f3ca8adb97ce7ac97d0407fa914e6b48a4bc Mon Sep 17 00:00:00 2001
From: Oliver Kowalke <oliver.kowalke@gmx.de>
Date: Sun, 13 Dec 2015 10:52:18 +0100
Subject: [PATCH] fix result_of<> usage

---
 include/boost/fiber/future/async.hpp | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/include/boost/fiber/future/async.hpp b/include/boost/fiber/future/async.hpp
index b6792a8d..13f3d025 100644
--- a/include/boost/fiber/future/async.hpp
+++ b/include/boost/fiber/future/async.hpp
@@ -21,24 +21,22 @@ namespace boost {
 namespace fibers {
 
 template< typename Fn, typename ... Args >
-future< typename std::result_of< Fn &&( Args && ... ) >::type >
+future< typename std::result_of< Fn( Args && ... ) >::type >
 async( Fn && fn, Args && ... args) {
-    typedef typename std::result_of< Fn &&( Args && ... ) >::type result_type;
+    typedef typename std::result_of< Fn( Args && ... ) >::type result_type;
 
-    packaged_task< result_type( typename std::decay< Args >::type ... ) > pt{
-            std::forward< Fn >( fn) };
+    packaged_task< result_type( Args && ... ) > pt{ std::forward< Fn >( fn) };
     future< result_type > f{ pt.get_future() };
     fiber{ std::move( pt), std::forward< Args >( args) ... }.detach();
     return f;
 }
 
 template< typename StackAllocator, typename Fn, typename ... Args >
-future< typename std::result_of< Fn &&( Args && ... ) >::type >
+future< typename std::result_of< Fn( Args && ... ) >::type >
 async( std::allocator_arg_t, StackAllocator salloc, Fn && fn, Args && ... args) {
-    typedef typename std::result_of< Fn &&( Args && ... ) >::type result_type;
+    typedef typename std::result_of< Fn( Args && ... ) >::type result_type;
 
-    packaged_task< result_type( typename std::decay< Args >::type ... ) > pt{
-            std::forward< Fn >( fn) };
+    packaged_task< result_type( Args && ... ) > pt{ std::forward< Fn >( fn) };
     future< result_type > f{ pt.get_future() };
     fiber{ salloc, std::move( pt), std::forward< Args >( args) ... }.detach();
     return f;