From 980187f85643adbb67c95d72794fbe74e585acd5 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sat, 20 Jun 2015 15:33:17 +0200
Subject: [PATCH] system/PeriodClock: make IsDefined() "constexpr"

---
 src/system/PeriodClock.hxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/system/PeriodClock.hxx b/src/system/PeriodClock.hxx
index 1ba74ece2..2c535fee9 100644
--- a/src/system/PeriodClock.hxx
+++ b/src/system/PeriodClock.hxx
@@ -63,7 +63,7 @@ protected:
   }
 
 public:
-  bool IsDefined() const {
+  constexpr bool IsDefined() const {
     return last != 0;
   }