add kMinValidValue

2010-11-30 09:28:02 +00:00
parent 3b9f3d557c
commit d77cc69e18
1 changed files with 3 additions and 1 deletions
--- a/constraint_solver/interval.cc
+++ b/constraint_solver/interval.cc
@@ -25,8 +25,10 @@ namespace operations_research {

 // ----- Interval Var -----

-const int64 IntervalVar::kMinValidValue = kint64min >> 2;
+// It's good to have the two extreme values being symmetrical around zero: it
+// makes mirroring easier.
 const int64 IntervalVar::kMaxValidValue = kint64max >> 2;
+const int64 IntervalVar::kMinValidValue = -kMaxValidValue;

 // ----- MirrorIntervalVar -----