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POEXC_BAD_ACCESS upon accessing a static member?
 

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    <p>I've developed a game on Cocos2d-x v2 platform I started on Android, after completely finishing the coding on Eclipse I used the same code on Xcode to create and iOS version. After adding all the required libraries, I succeeded in compiling the code. However, the game hangs the moment it runs on an iOS device, although it runs without any problem on Android. I tried both the emulator and an iPod, but I always get an EXC_BAD_ACCESS when accessing a static member from a static method. The static member would always point to 0x0!! Here's an excerpt from the code:\</p> <p>AppDelegate.cpp</p> <pre><code>#include "AppDelegate.h" #include "NASEncData.h" AppDelegate::AppDelegate() { ep = NASEncData::sharedUserData(); } </code></pre> <p>NASEncData.h</p> <pre><code>namespace CocosNas { class NASEncData : public CCObject { public: static NASEncData* sharedUserData(); private: NASEncData(); static void initXMLFilePath(); static std::string m_sFilePath; } } </code></pre> <p>NASEncData.cpp</p> <pre><code>#include "NASEncData.h" NASEncData* NASEncData::sharedUserData() { initXMLFilePath(); // only create xml file one time // the file exists after the programe exit if ((! isXMLFileExist()) &amp;&amp; (! createXMLFile())) { return NULL; } if (! m_spUserData) { m_spUserData = new NASEncData(); } return m_spUserData; } void NASEncData::initXMLFilePath() { if (! m_sbIsFilePathInitialized) { m_sFilePath += CCFileUtils::sharedFileUtils()-&gt;getWriteablePath() + NASENCDATA_XML_FILE_NAME; &lt;----error happens here m_sbIsFilePathInitialized = true; } } </code></pre>
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    1. COBy any chance, is the instance of `AppDelegate` that the constructor is called for also a static variable?
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    2. COin the iOS version, there's a main .mm file which defines the following: static AppDelegate s_sharedApplication; is that OK?
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    3. COI think that could be your problem.
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