From 636425404d18347061114c735b8ffc77cdaf0d69 Mon Sep 17 00:00:00 2001
From: Frank Dellaert <dellaert@gmail.com>
Date: Sun, 2 Jan 2022 19:57:07 -0500
Subject: [PATCH] Fix compile error on windows

---
 gtsam/discrete/DecisionTree-inl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/discrete/DecisionTree-inl.h b/gtsam/discrete/DecisionTree-inl.h
index af52a6daf..259489f06 100644
--- a/gtsam/discrete/DecisionTree-inl.h
+++ b/gtsam/discrete/DecisionTree-inl.h
@@ -662,7 +662,7 @@ namespace gtsam {
   DecisionTree<L, Y> DecisionTree<L, Y>::apply(const DecisionTree& g,
       const Binary& op) const {
     // It is unclear what should happen if either tree is empty:
-    if (empty() or g.empty()) {
+    if (empty() || g.empty()) {
       throw std::runtime_error(
           "DecisionTree::apply(binary op) undefined for empty trees.");
     }