From: Andrew Krieger <andrew.krieger@oculus.com>
Date: Mon, 23 Oct 2017 16:36:28 +0000 (-0700)
Subject: Gate std::invoke_result et. al. to appropriate MSVC versions.
X-Git-Tag: v2017.10.30.00~30
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6d012519103c4cb27901fcfe7932d57c34d7ad8e;p=folly.git

Gate std::invoke_result et. al. to appropriate MSVC versions.

Summary: Only available in >= 2017 15.3, which is 1911+.

Reviewed By: aary, Orvid

Differential Revision: D6117237

fbshipit-source-id: 255804af5bfd0c743fd225b8a4fddf3cfc9cfeaf
---

diff --git a/folly/functional/Invoke.h b/folly/functional/Invoke.h
index 5e17a6b6..0924af7a 100644
--- a/folly/functional/Invoke.h
+++ b/folly/functional/Invoke.h
@@ -61,7 +61,8 @@ constexpr auto invoke(M(C::*d), Args&&... args)
 
 #endif
 
-#if __cpp_lib_is_invocable >= 201703 || _MSC_VER
+// Only available in >= MSVC 2017 15.3
+#if __cpp_lib_is_invocable >= 201703 || _MSC_VER >= 1911
 
 namespace folly {