checkpoint

[sbp.git] / src / edu / berkeley / sbp / misc / Cartesian.java

diff --git a/src/edu/berkeley/sbp/misc/Cartesian.java b/src/edu/berkeley/sbp/misc/Cartesian.java
index 6627fbf..676a4cf 100644 (file)
--- a/src/edu/berkeley/sbp/misc/Cartesian.java
+++ b/src/edu/berkeley/sbp/misc/Cartesian.java
@@ -51,7 +51,7 @@ public class Cartesian {
         public int getRow() { return row; }
         public Location(int col, int row) { this.row = row; this.col = col; }
         public int compareTo(Input.Location loc) throws ClassCastException {
-            if (!(loc instanceof Cartesian)) throw new ClassCastException();
+            if (!(loc instanceof Cartesian.Location)) throw new ClassCastException(loc.getClass().getName());
             Location<Tok> c = (Location<Tok>)loc;
             if (row < c.row) return -1;
             if (row > c.row) return  1;