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POUncalled function causes error
 

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  1. POUncalled function causes error
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    <p>I'm having trouble resolving this issue around my vectors and strings. I've created a class for reading shaders (OpenGL), but currently not using it anywhere within my program. The problem is when I test my application, I still get an error. The function where I've narrowed down the error is below and if I comment-out the the lines, my application runs as expected (uncommenting lines in relation to <code>sProgram</code> causes error:</p> <pre><code>#define FOR(q, n) for (int q = 0; q &lt; n; q++) #define SFOR(q, s, e) for (int q = s; q &lt;= e; q++) #define RFOR(q, n) for (int q = n; q &gt;= 0; q--) #define RSFOR(q, s, e) for (int q = s; q &gt;= e; q--) #define ESZ(elem) (int)elem.size() ... ... bool GLShader::LoadShader(string sFile, int a_iType) { FILE* fp = fopen(sFile.c_str(), "rt"); if (!fp) return false; // Get all lines from a file vector&lt;string&gt; sLines; char sLine[255]; while (fgets(sLine, 255, fp)) sLines.push_back(sLine); fclose(fp); // const char** sProgram = new const char*[ESZ(sLines)]; &lt;--- problem with sProgram // FOR(i, ESZ(sLines))sProgram[i] = sLines[i].c_str(); uiShader = glCreateShader(a_iType); // glShaderSource(uiShader, ESZ(sLines), sProgram, NULL); glCompileShader(uiShader); // delete[] sProgram; &lt;--- Error int iCompilationStatus; glGetShaderiv(uiShader, GL_COMPILE_STATUS, &amp;iCompilationStatus); if (iCompilationStatus == GL_FALSE) return false; iType = a_iType; bLoaded = true; return 1; } </code></pre> <p>This is the error I received:</p> <pre><code>Error 1 error LNK2019: unresolved external symbol __imp___CrtDbgReportW referenced in function "public: class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &amp; __thiscall std::vector&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;, class std::allocator&lt;char&gt; &gt;,class std::allocator&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &gt; &gt;::operator[](unsigned int)" (??A?$vector@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V? $allocator@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std @@@2@@std@@QAEAAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@1@I@Z) c:\Users\Me\documents\visual studio 2013\Projects\FooV1\FooV1\Bar.obj </code></pre> <p>And in the output:</p> <pre><code>1&gt;------ Build started: Project: FooV1, Configuration: Debug Win32 ------ 1&gt; main.cpp 1&gt;Bar.obj : error LNK2019: unresolved external symbol __imp___CrtDbgReportW referenced in function "public: class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &amp; __thiscall std::vector&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt;,class std::allocator&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &gt; &gt;::operator[](unsigned int)" (??A?$vector@V?$basic_string@DU?$char_traits@D@std@@V?$allocator @D@2@@std@@V?$allocator@V?$basic_string@DU?$char_traits@D@std@@V? $allocator@D@2@@std@@@2@@std@@QAEAAV?$basic_string@DU?$char_traits @D@std@@V?$allocator@D@2@@1@I@Z) 1&gt;c:\users\Me\documents\visual studio 2013\Projects\FooV1\Debug\FooV1.exe : fatal error LNK1120: 1 unresolved externals ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== </code></pre>
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    1. USSpicyWeenie
    1. USSpicyWeenie
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    1. COI believe your error is this: const char** sProgram = new const char*[ESZ(sLines)]; but I'm not sure
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      1. POUncalled function causes error
      1. USAndyG
    2. COI'm a little unclear on what your questions is. You may also want to highlight the lines that you have to comment out to get it working.
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      1. POUncalled function causes error
      1. USDavid
    3. COThe unresolved error is indirectly related to the vector of strings. std::string is a typedef for basic_string<char>. Since the symbol it's missing is __imp__CrtDbgReportW, I would check to make sure that you aren't mixing runtime libraries. Check the code generation properties of the project.
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      1. POUncalled function causes error
      1. USsbaker
 

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