From e85995ed0baa660addc97498e77c7d1700f2663c Mon Sep 17 00:00:00 2001
From: Gabriel Dos Reis <gdr@microsoft.com>
Date: Sun, 20 Sep 2015 10:16:47 -0700
Subject: [PATCH] Fix #28

Help following the main thread without being distracted.
---
 CppCoreGuidelines.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index dc1236d..dd69470 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -2363,7 +2363,7 @@ Returning a `T*` to transfer ownership is a misuse.
 
 		Node* find(Node* t, const string& s)	// find s in a binary tree of Nodes
 		{
-			if (t->name==s) return t;
+			if (t == nullptr || t->name == s) return t;
 			if (auto p = find(t->left,s)) return p;
 			if (auto p = find(t->right,s)) return p;
 			return nullptr;