From c2f677b05edf9a12c7591645d4d5ea8dc7cf3e4b Mon Sep 17 00:00:00 2001
From: Dmitry-Me <wipedout@yandex.ru>
Date: Thu, 15 Jun 2017 12:44:27 +0300
Subject: [PATCH] Unlinked nodes assertions

---
 tinyxml2.cpp | 1 +
 tinyxml2.h   | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tinyxml2.cpp b/tinyxml2.cpp
index 3182c5a..99b5e92 100755
--- a/tinyxml2.cpp
+++ b/tinyxml2.cpp
@@ -1994,6 +1994,7 @@ XMLDocument::~XMLDocument()
 
 void XMLDocument::MarkInUse(XMLNode* node)
 {
+	TIXMLASSERT(node);
 	TIXMLASSERT(node->_parent == 0);
 
 	for (int i = 0; i < _unlinked.Size(); ++i) {
diff --git a/tinyxml2.h b/tinyxml2.h
index 864c8b9..fd7f6b4 100755
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -265,8 +265,8 @@ public:
     }
 
 	void SwapRemove(int i) {
-        TIXMLASSERT(i >= 0);
-		TIXMLASSERT(i < _size);
+		TIXMLASSERT(i >= 0 && i < _size);
+		TIXMLASSERT(_size > 0);
 		_mem[i] = _mem[_size - 1];
 		--_size;
 	}