From b2fbb25dd9009b9e4833b83c3bdf24701ed92c54 Mon Sep 17 00:00:00 2001
From: Joachim Klein <klein@tcs.inf.tu-dresden.de>
Date: Fri, 23 Jun 2017 09:11:16 +0000
Subject: [PATCH] JDD.isSingleton: improve documentation (requires that the
 vars are ordered)

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@11991 bbc10eb1-c90d-0410-af57-cb519fbb1720
---
 prism/src/jdd/JDD.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/prism/src/jdd/JDD.java b/prism/src/jdd/JDD.java
index 6aa59bce..012d9f05 100644
--- a/prism/src/jdd/JDD.java
+++ b/prism/src/jdd/JDD.java
@@ -1063,6 +1063,10 @@ public class JDD
 	 * <br>
 	 * This is the case if there is a single path to the ONE constant
 	 * and exactly the variables of {@code vars} occur on the path.
+	 * <br>
+	 * <b>Note:</b> The variables in {@code vars} have to sorted
+	 * in increasing index order! Use JDDVars.sortByIndex() to achieve this
+	 * if the ordering is not guaranteed by construction.
 	 * @param dd the DD
 	 * @param vars the variables
 	 */