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POConversion of std::wstring to QString throws linker error
 

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  1. POConversion of std::wstring to QString throws linker error
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    <p>Hi I need to convert a <code>std::wstring</code> to <code>QString</code> and I tried the most obvious way of </p> <pre><code>std::wstring wideString; QString qtString = QString::fromStdWString(wideString); </code></pre> <p>I got the error:</p> <blockquote> <p>Error 2 error LNK2019: unresolved external symbol <code>"__declspec(dllimport) public: static class QString __cdecl QString::fromStdWString(class std::basic_string&lt;wchar_t,struct std::char_traits&lt;wchar_t&gt;,class std::allocator&lt;wchar_t&gt; &gt; const &amp;)" (__imp_?fromStdWString@QString@@SA?AV1@ABV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@Z)</code></p> <p>referenced in function <code>"public: void __thiscall FileHandler::deleteDir(class std::basic_string&lt;wchar_t,struct std::char_traits&lt;wchar_t&gt;,class std::allocator&lt;wchar_t&gt; &gt;&amp;,int,unsigned int,bool,bool)" (?deleteDir@FileHandler@@QAEXAAV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@HI_N1@Z)</code> filehandler.obj</p> <p>Error 3 fatal error LNK1120: 1 unresolved externals C:\Users\Documents\Visual Studio 2008\Projects\product_dev\deletefiles\Debug\FileHandler.exe</p> </blockquote> <p>I also tried using the method <code>QString::fromWCharArray</code>:</p> <pre><code>qstring temp = QString::fromWCharArray(const_cast&lt;wchar_t*&gt;(wideString.c_str()),wideString.size()); </code></pre> <p>The error I get is </p> <blockquote> <p>Error 2 error LNK2019: unresolved external symbol <code>"__declspec(dllimport) public: static class QString __cdecl QString::fromWCharArray(wchar_t const*,int)" (__imp_?fromWCharArray@QString@@SA?AV1@PB_WH@Z)</code></p> <p>referenced in function <code>"public: void __thiscall FileHandler::deleteDir(class std::basic_string&lt;wchar_t,struct std::char_traits&lt;wchar_t&gt;,class std::allocator&lt;wchar_t&gt; &gt;&amp;,int,unsigned int,bool,bool)" (?deleteDir@FileHandler@@QAEXAAV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@HI_N1@Z)</code> filehandler.obj</p> <p>Error 3 fatal error LNK1120: 1 unresolved externals C:\Users\Documents\Visual Studio 2008\Projects\product_dev\deletefiles\Debug\FileHandler.exe 1</p> </blockquote> <p>How do I proceed to resolve this issue?</p>
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