Fix decorator for certain sizes

CHANGELOG.md

@@ -1,3 +1,9 @@
+Version 227:
+
+* Fix decorator for certain sizes
+
+--------------------------------------------------------------------------------
+
 Version 226:
 
 * Support -fno-exceptions

include/boost/beast/websocket/detail/decorator.hpp

@@ -223,7 +223,7 @@ public:
     decorator(F&& f)
         : base_(construct(std::forward<F>(f),
             std::integral_constant<bool,
-                sizeof(F) <= sizeof(buf_)>{}))
+                sizeof(F) <= Bytes>{}))
     {
     }
 

test/beast/websocket/_detail_decorator.cpp

@@ -86,6 +86,14 @@ public:
         char buf[2048];
     };
 
+    struct goldi // just right
+    {
+        std::array<char, 48> a;
+        void operator()(request_type &) const
+        {
+        }
+    };
+
     void
     dec_req(request_type&)
     {
@@ -121,6 +129,10 @@ public:
             decorator d3;
             d3 = std::move(d2);
         }
+
+        {
+            decorator d{goldi{}};
+        }
     }
 
     void