src/Pure/General/time.scala
changeset 53292 f567c1c7b180
parent 51587 7050c4656fd8
child 56351 1c735e46acf0
--- a/src/Pure/General/time.scala	Thu Aug 29 20:46:55 2013 +0200
+++ b/src/Pure/General/time.scala	Thu Aug 29 21:17:46 2013 +0200
@@ -30,6 +30,7 @@
   def min(t: Time): Time = if (ms < t.ms) this else t
   def max(t: Time): Time = if (ms > t.ms) this else t
 
+  def is_zero: Boolean = ms == 0
   def is_relevant: Boolean = ms >= 1
 
   override def hashCode: Int = ms.hashCode