From 9135bab70e312ff33e6b41fc25b5d9b7964e0ea6 Mon Sep 17 00:00:00 2001
From: microcai <microcaicai@gmail.com>
Date: Mon, 28 Oct 2024 22:47:08 +0800
Subject: [PATCH] x

---
 include/ucoro/awaitable.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/ucoro/awaitable.hpp b/include/ucoro/awaitable.hpp
index a06864f..2aae82b 100644
--- a/include/ucoro/awaitable.hpp
+++ b/include/ucoro/awaitable.hpp
@@ -132,6 +132,8 @@ namespace ucoro
 			await_transformer<T>::await_transform(std::move(a));
 		};
 
+		template<typename T>
+		struct is_not_awaitable : std::false_type{};
 
 	} // namespace concepts
 
@@ -361,7 +363,7 @@ namespace ucoro
 			}
 			else
 			{
-				static_assert(0, "co_await must be called on an awaitable type");
+				static_assert(concepts::is_not_awaitable<A>::value, "co_await must be called on an awaitable type");
 			}
 		}