From 6e2efe563ac7535a51c4af6c75d6b0d32a92b91b Mon Sep 17 00:00:00 2001
From: Siu Chi Chan <siuchi.chan@amd.com>
Date: Mon, 6 May 2019 12:03:09 -0400
Subject: [PATCH] fix breakage due to compiling in C++17

[ROCm/hip commit: cec09269247dee5811103330e2b1959837d32bb2]
---
 projects/hip/include/hip/hcc_detail/helpers.hpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/projects/hip/include/hip/hcc_detail/helpers.hpp b/projects/hip/include/hip/hcc_detail/helpers.hpp
index 1916945c1a..9366885f8b 100644
--- a/projects/hip/include/hip/hcc_detail/helpers.hpp
+++ b/projects/hip/include/hip/hcc_detail/helpers.hpp
@@ -84,12 +84,21 @@ struct is_callable_impl<F(Ts...), 4u, void_t_<decltype(std::declval<F>()(std::de
 // Not callable.
 template <FunctionalProcedure F>
 struct is_callable_impl<F, 5u> : std::false_type {};
-#else
+#elif  (__cplusplus < 201703L)
 template <typename, typename = void>
 struct is_callable_impl : std::false_type {};
 
 template <FunctionalProcedure F, typename... Ts>
 struct is_callable_impl<F(Ts...), void_t_<std::result_of_t<F(Ts...)> > > : std::true_type {};
+#else
+
+// C++17
+
+template <typename, typename = void>
+struct is_callable_impl : std::false_type {};
+
+template <FunctionalProcedure F, typename... Ts>
+struct is_callable_impl<F(Ts...), void_t_<std::invoke_result<F(Ts...)> > > : std::true_type {};
 #endif
 template <typename Call>
 struct is_callable : is_callable_impl<Call> {};