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POGetting linking error while using STL containers
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  1. POGetting linking error while using STL containers
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    copied!<p>I am getting following linking error, while running my C++ code in VS2008 in which I have used C++ STL :</p> <pre><code>error LNK2001: unresolved external symbol "public: static class std::_Tree&lt;class std::::_Tmap_traits&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;, class std::allocator&lt;char&gt; &gt;,class std::basic_string&lt;char,struct std::char_traits&lt;char&gt; ,class std::allocator&lt;char&gt; &gt;,struct std::less&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt; &gt;,class std::allocator&lt;struct std::pair&lt;class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std:: allocator&lt;char&gt; &gt; const ,class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;, class std::allocator&lt;char&gt; &gt; &gt; &gt;,0&gt; &gt;::iterator parser::parsedDataIterator" (?parsedDataIterator@parser@@2Viterator@?$_Tree@V?$_Tmap_traits@V?$basic_string@DU?$ char_traits@D@std@@V?$allocator@D@2@@std@@V12@U?$less@V?$basic_string@DU?$char_traits @D@std@@V?$allocator@D@2@@std@@@2@V?$allocator@U?$pair@$$CBV?$basic_string@DU?$char _traits@D@std@@V?$allocator@D@2@@std@@V12@@std@@@2@$0A@@std@@@std@@A) parser.obj </code></pre> <p>I haven't associated any library with the code, don't know if there is there any need for the same.</p> <p>Below is the code that is compiling successfully:</p> <pre><code>//Including header file that just contains the class declaration #include "parser.h" //Static variable definitions... int parser::lang = -1; std::string parser::fullString; std::map&lt;std::string, std::string&gt; parser::parsedData; std::map&lt;std::string, std::string&gt;::iterator parsedDataIterator; std::stack&lt;char&gt; parser::symbolStack; //The parsing function used to parse XML content.. bool parser::XMLParser(std::string arg_String) { //Create empty strings... std::string tagText; std::string emptyString = ""; //Maintain count for string length int count = 0; //Loop over whole string... for(unsigned int i=0 ; i&lt;arg_String.length() ; i++) { //ignore white string when not reading internal tag text content... cout&lt;&lt;"Value of i : "&lt;&lt;i&lt;&lt;" ... Value of str.char is :"&lt;&lt;arg_String[i]&lt;&lt;endl; if(arg_String[i] == ' ' &amp;&amp; count==0) continue; if(arg_String[i] == '&lt;'){ symbolStack.push(arg_String[i]); tagText.clear(); } else if(arg_String[i] == '&gt;'){ symbolStack.pop(); parsedData[tagText] = ""; } else{ tagText.push_back(arg_String[i]); count++; } } if(symbolStack.empty()) { cout&lt;&lt;"XML parsing was successful :"&lt;&lt;endl; return true; } } bool parser::populateAndReturn(std::string arg_String) { bool status = false; status = XMLParser(arg_String); return status; } int main(int argc, char *argv[]) { std::string inputString = "&lt;html&gt;"; if(parser::populateAndReturn(inputString)) { for(parser::parsedDataIterator = parser::parsedData.begin(); parser::parsedDataIterator != parser::parsedData.end(); ++parser::parsedDataIterator) cout &lt;&lt; "Key: " &lt;&lt; (*parser::parsedDataIterator).first &lt;&lt; " Value: " &lt;&lt; (*parser::parsedDataIterator).second; } else cout&lt;&lt;"\nError encountered while parsing"; system("pause"); } </code></pre> <p>Code for "parser.h":</p> <pre><code>#pragma once #include&lt;iostream&gt; #include&lt;fstream&gt; #include &lt;map&gt; #include &lt;stack&gt; #include &lt;string&gt; using namespace std; class parser { static std::string fullString; //Declaring a map that will associate the tag with the container text. static std::stack&lt;char&gt; symbolStack; public: static std::map&lt;std::string, std::string&gt; parsedData; static std::map&lt;std::string, std::string&gt;::iterator parsedDataIterator; parser(){ } static int lang; static enum format{ XML, JSON, ZZZ = -1 }; static bool populateAndReturn(std::string arg_String); static bool XMLParser(std::string arg_String); }; </code></pre>
 

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