Use fully qualified namespace in BOOST_BEAST_HANDLER_INIT

CHANGELOG.md

@@ -3,6 +3,7 @@ Version 169:
 * Use buffers_to_string in tests
 * Use boost::void_t
 * Refactor HTTP write_op implementation
+* Use fully qualified namespace in BOOST_BEAST_HANDLER_INIT
 
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include/boost/beast/core/detail/type_traits.hpp

@@ -461,7 +461,7 @@ buffers_range(Buffers const& buffers)
     expected by the initiating function,
 */
 #define BOOST_BEAST_HANDLER_INIT(type, sig) \
-    static_assert(is_completion_handler< \
+    static_assert(boost::beast::is_completion_handler< \
     BOOST_ASIO_HANDLER_TYPE(type, sig), sig>::value, \
     "CompletionHandler signature requirements not met"); \
     boost::asio::async_completion<type, sig> init{handler}