From f07f0c74b7313a04d9275f654669cdd3be73d511 Mon Sep 17 00:00:00 2001
From: Christopher Kohlhoff <chris@kohlhoff.com>
Date: Wed, 5 Apr 2023 21:16:18 +1000
Subject: [PATCH] Fix doc generation for is_async_operation.

---
 include/boost/asio/async_result.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/asio/async_result.hpp b/include/boost/asio/async_result.hpp
index e9bd3419..c73e0eed 100644
--- a/include/boost/asio/async_result.hpp
+++ b/include/boost/asio/async_result.hpp
@@ -1321,7 +1321,7 @@ class async_result<detail::async_operation_probe, Sig0, Sig1, Sig2>
 #endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
 #endif // !defined(GENERATING_DOCUMENTATION)
 
-#if defined(GENERATION_DOCUMENTATION)
+#if defined(GENERATING_DOCUMENTATION)
 
 /// The is_async_operation trait detects whether a type @c T and arguments
 /// @c Args... may be used to initiate an asynchronous operation.