From c6f344a95922a7b998de98b7bf2d85e1f9bf0a60 Mon Sep 17 00:00:00 2001
From: Eric Niebler <eniebler@fb.com>
Date: Mon, 3 Jul 2017 14:13:27 -0700
Subject: [PATCH] constexpr the Unit comparison ops

Summary: `constexpr` All The Things!

Reviewed By: Orvid

Differential Revision: D5364910

fbshipit-source-id: 11abeb8adc38aef3ac4f2596ecf0f533b9e74203
---
 folly/Unit.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/folly/Unit.h b/folly/Unit.h
index cfc2703b..0f90ff6e 100644
--- a/folly/Unit.h
+++ b/folly/Unit.h
@@ -45,8 +45,12 @@ struct Unit {
   template <typename T>
   struct Drop : std::conditional<std::is_same<T, Unit>::value, void, T> {};
 
-  bool operator==(const Unit& /*other*/) const { return true; }
-  bool operator!=(const Unit& /*other*/) const { return false; }
+  constexpr bool operator==(const Unit& /*other*/) const {
+    return true;
+  }
+  constexpr bool operator!=(const Unit& /*other*/) const {
+    return false;
+  }
 };
 
 constexpr Unit unit {};
-- 
2.34.1