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POHow to delete warnings LNK4217 and LNK4049
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  1. POHow to delete warnings LNK4217 and LNK4049
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    copied!<p>I have warnings on the link step. These warnings appear only in release mode. </p> <p>My program is composed of two parts: a library which generates a .lib and an executable which uses this library. </p> <p>When I build the library I have no warnings. But when I build my executable, on the link I have warnings LNK4217 and LNK4049. For example:</p> <pre><code>3&gt;DaemonCommon.lib(Exception.obj) : warning LNK4217: locally defined symbol ??0exception@std@@QAE@ABQBD@Z (public: __thiscall std::exception::exception(char const * const &amp;)) imported in function "public: __thiscall std::bad_alloc::bad_alloc(char const *)" (??0bad_alloc@std@@QAE@PBD@Z) 3&gt;DaemonCommon.lib(CommAnetoException.obj) : warning LNK4217: locally defined symbol ??0exception@std@@QAE@ABQBD@Z (public: __thiscall std::exception::exception(char const * const &amp;)) imported in function "public: __thiscall std::bad_alloc::bad_alloc(char const *)" (??0bad_alloc@std@@QAE@PBD@Z) </code></pre> <p>I have read in the MSDN, these warnings may be caused by the declaration of __declspec(dllimport). But, in my classes of my lib, I haven't things declared like this. For example, here is my class Exception:</p> <pre><code>#ifndef _EXCEPTION_HPP__ #define _EXCEPTION_HPP__ #include &lt;string&gt; namespace Exception { class Exception { public: // Constructor by default Exception(); // Constructor parametrized Exception(std::string&amp; strMessage); // Get the message of the exception virtual std::string getMessage() const; // Destructor virtual ~Exception(); protected: // String containing the message of the exception std::string mStrMessage; }; } #endif </code></pre> <p>Can somebody tell me why these warnings appear and how to delete them ? </p>
 

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