From 4692d4b36e5aed35a8d52f4ffc66b06c2a456e6d Mon Sep 17 00:00:00 2001
From: Roman Donchenko <roman.donchenko@itseez.com>
Date: Thu, 4 Jul 2013 17:06:00 +0400
Subject: [PATCH] Fix bug: cv::String would break if assigned to itself.

---
 modules/core/include/opencv2/core/cvstd.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/core/include/opencv2/core/cvstd.hpp b/modules/core/include/opencv2/core/cvstd.hpp
index 0232c6d..0f96941 100644
--- a/modules/core/include/opencv2/core/cvstd.hpp
+++ b/modules/core/include/opencv2/core/cvstd.hpp
@@ -580,6 +580,8 @@ String::~String()
 inline
 String& String::operator=(const String& str)
 {
+    if (&str == this) return *this;
+
     deallocate();
     if (str.cstr_) CV_XADD(((int*)str.cstr_)-1, 1);
     cstr_ = str.cstr_;
-- 
2.7.4