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POtemplate specialization multiply defined symbols
 

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    <p>I know i'm missing something easy here but I've got a templated member function of a class which I've specialised.</p> <pre><code>MyClass { template&lt;typename T&gt; T GetTFromVariable(shared_ptr&lt;TOtSimpleVariable&gt; v, string s); } template&lt;typename T&gt; T MyClass::GetTFromVariable(shared_ptr&lt;TOtSimpleVariable&gt; v, string s) { throw std::runtime_error("Don't know how to convert " + ToString(v-&gt;GetString())); } template&lt;&gt; int MyClass::GetTFromVariable&lt;int&gt;(shared_ptr&lt;TOtSimpleVariable&gt; v, string s) { return v-&gt;GetInteger(); } template&lt;&gt; string MyClass::GetTFromVariable&lt;string&gt;(shared_ptr&lt;TOtSimpleVariable&gt; v, string s) { return v-&gt;GetString(); } // etc for other specialisations. </code></pre> <p>This is defined in my header file (as templates should be) but when I go and compile I get a bunch of mutliply defined symbols, a representative such error is: </p> <pre><code> OtCustomZenith_logic.lib(PtPathOutput.obj) : error LNK2005: "public: class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; __thiscall MyClass::GetTFromVariable&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &gt;(class boost::shared_ptr&lt;class TOtSimpleVariable&gt;,class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt;)" (??$GetTFromVariable@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@CommandProperties@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V?$shared_ptr@VTOtSimpleVariable@@@boost@@V12@@Z) already defined in TableFareSystem_test.obj </code></pre> <p>I can fix it by inlining the methods but I don't think that should be necessary... what did I forget?</p> <p>EDIT: I'm using Visual Studio 2010</p>
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    1. COWhat toolchain are you using? GCC? Visual something? If GCC, what do the build and link lines look like?
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