Fix message constructor and special members

fix #196

CHANGELOG.md

@@ -1,3 +1,14 @@
+1.0.0-b23
+
+* Tune websocket echo server for performance
+* Add file and line number to thrown exceptions
+* Better logging in async echo server
+* Add copy special members
+* Fix message constructor and special members
+* Travis CI improvements 
+
+--------------------------------------------------------------------------------
+
 1.0.0-b22
 
 * Fix broken Intellisense

include/beast/http/message.hpp

@@ -246,6 +246,18 @@ struct message : header<isRequest, Fields>
     /// Default constructor
     message() = default;
 
+    /// Move constructor
+    message(message&&) = default;
+
+    /// Copy constructor
+    message(message const&) = default;
+
+    /// Move assignment
+    message& operator=(message&&) = default;
+
+    /// Copy assignment
+    message& operator=(message const&) = default;
+
     /** Construct a message from a header.
 
         Additional arguments, if any, are forwarded to
@@ -281,8 +293,9 @@ struct message : header<isRequest, Fields>
     */
     template<class U
 #if ! GENERATING_DOCS
-        , class = typename std::enable_if<! std::is_convertible<
+        , class = typename std::enable_if<
-            typename std::decay<U>::type, base_type>::value>
+            ! std::is_convertible<typename
+                std::decay<U>::type, base_type>::value>::type
 #endif
     >
     explicit
@@ -303,7 +316,7 @@ struct message : header<isRequest, Fields>
     template<class U, class V
 #if ! GENERATING_DOCS
         ,class = typename std::enable_if<! std::is_convertible<
-            typename std::decay<U>::type, base_type>::value>
+            typename std::decay<U>::type, base_type>::value>::type
 #endif
     >
     message(U&& u, V&& v)

test/http/message.cpp

@@ -278,6 +278,19 @@ public:
         BEAST_EXPECT(m2.fields.exists("h"));
     }
 
+    void
+    testSpecialMembers()
+    {
+        response<string_body> r1;
+        response<string_body> r2{r1};
+        response<string_body> r3{std::move(r2)};
+        r2 = r3;
+        r1 = std::move(r2);
+        [r1]()
+        {
+        }();
+    }
+
     void run() override
     {
         testMessage();
@@ -285,6 +298,7 @@ public:
         testFreeFunctions();
         testPrepare();
         testSwap();
+        testSpecialMembers();
     }
 };