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POLinking error for multiplication declaration of static data member
 

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  1. POLinking error for multiplication declaration of static data member
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    <p>I am getting linking error for multiple declaration of a static data member. I took all the necessary precaution to avoid multiple inclusion of the header file but still I am getting error. </p> <pre><code>//dummymessage.h #ifndef DUMMY_MESSAGE #define DUMMY_MESSAGE #pragma once #include "stdafx.h" #include "string" class CDummyMessage { private: static int CDummyMessage::ObjCount1; public: CDummyMessage(void); CDummyMessage(std::string content, int type); ~CDummyMessage(void); private: std::string m_Message_content; int m_type; }; int CDummyMessage::ObjCount1 = 0; #endif </code></pre> <p>//dummymessage.cpp</p> <pre><code>#include "stdafx.h" #include "iostream" #include "DummyMessage.h" using namespace dummy; CDummyMessage::CDummyMessage(void) { std::cout&lt;&lt;"Constructor called. ID: "&lt;&lt;++CDummyMessage::ObjCount1&lt;&lt;std::endl; } CDummyMessage::~CDummyMessage(void) { std::cout&lt;&lt;"Destructor called. ID: "&lt;&lt;--CDummyMessage::ObjCount1&lt;&lt;std::endl; } CDummyMessage::CDummyMessage(std::string content, int type): m_Message_content(content) { } </code></pre> <p>//main.cpp</p> <pre><code>#include "stdafx.h" #include "windows.h" #include "list" #include "process.h" #include "iostream" #include "DummyMessage.h" using namespace std; int _tmain(int argc, _TCHAR* argv[]) { for(auto i = 0;++i &lt; 10000;){ CDummyMessage* l_pNewMsg = new CDummyMessage("Test message", i); g_Message_queue.push_front(l_pNewMsg); } return 0; } </code></pre> <p>I am getting linking error for this:-</p> <pre><code>Error 1 error LNK2005: "private: static int dummy::CDummyMessage::ObjCount1" (?ObjCount1@CDummyMessage@dummy@@0HA) already defined in DummyMessage.obj C:\Users\Veil\documents\visual studio 2012\Projects\SmartPointerExample\SmartPointerExample\SmartPointerExample.obj </code></pre>
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    1. USBhupesh Pant
    1. USBhupesh Pant
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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