From 88eab11155fc29cc92458d9b1d578a520c44ee9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=82=B9=E6=99=93=E8=88=AA?= <1210603696@qq.com>
Date: Mon, 16 Mar 2015 15:13:59 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0friend=20class=20=E5=85=B3?=
 =?UTF-8?q?=E7=B3=BB?=
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---
 TinySTL/Memory.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/TinySTL/Memory.h b/TinySTL/Memory.h
index a259797..cf2da31 100644
--- a/TinySTL/Memory.h
+++ b/TinySTL/Memory.h
@@ -6,6 +6,10 @@
 #include "Detail\Ref.h"
 
 namespace TinySTL{
+	template<class _T>
+	class cow_ptr;
+
+
 	template<class T>
 	struct default_delete{
 		void operator ()(T* ptr){ if(ptr) delete ptr; }
@@ -150,6 +154,10 @@ namespace TinySTL{
 		}
 	private:
 		ref_t<T> *ref_;
+
+	public:
+		template<class _T>
+		friend class cow_ptr;
 	};
 	template<class T1, class T2>
 	bool operator == (const shared_ptr<T1>& lhs, const shared_ptr<T2>& rhs){