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POHow to interpret the following error messages in C++
 

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  1. POHow to interpret the following error messages in C++
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    <p>I have no experience with C++ and was given a code that should supposedly be able to run without any debugging, however, I get a bunch of errors when I try to compile it. I just need some direction on how to start debugging it, any help would be appreciated. Here is the error message:</p> <pre><code>mpicc -c -O3 curvilinear_grid.cpp In file included from parameters.h:12:0, from curvilinear_grid.h:13, from curvilinear_grid.cpp:6: parameter_file_parser.h: In member function ‘int PARAMETER_FILE_PARSER&lt;T&gt;::Parse_Parameter_File()’: parameter_file_parser.h:86:13: error: invalid use of incomplete type ‘std::ifstream {aka struct std::basic_ifstream&lt;char&gt;}’ /usr/include/c++/4.6/iosfwd:113:11: error: declaration of ‘std::ifstream {aka struct std::basic_ifstream&lt;char&gt;}’ parameter_file_parser.h:92:29: error: no matching function for call to ‘getline(std::ifstream&amp;, std::string&amp;)’ parameter_file_parser.h:92:29: note: candidates are: /usr/include/c++/4.6/bits/basic_string.tcc:1070:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;, _CharT) /usr/include/c++/4.6/bits/basic_string.h:2734:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) parameter_file_parser.h:95:21: error: no match for ‘operator&gt;&gt;’ in ‘tokens &gt;&gt; std::ws’ parameter_file_parser.h:95:21: note: candidates are: /usr/include/c++/4.6/bits/basic_string.tcc:998:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) /usr/include/c++/4.6/bits/istream.tcc:957:5: note: template&lt;class _CharT2, class _Traits2&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, _CharT2*) /usr/include/c++/4.6/bits/istream.tcc:925:5: note: template&lt;class _CharT, class _Traits&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, _CharT&amp;) /usr/include/c++/4.6/istream:709:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, unsigned char&amp;) /usr/include/c++/4.6/istream:714:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, signed char&amp;) /usr/include/c++/4.6/istream:756:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, unsigned char*) /usr/include/c++/4.6/istream:761:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, signed char*) parameter_file_parser.h:95:51: error: no matching function for call to ‘getline(std::istringstream&amp;, std::string&amp;, char)’ parameter_file_parser.h:95:51: note: candidates are: /usr/include/c++/4.6/bits/basic_string.tcc:1070:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;, _CharT) /usr/include/c++/4.6/bits/basic_string.h:2734:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) parameter_file_parser.h:96:14: error: no match for ‘operator&gt;&gt;’ in ‘tokens &gt;&gt; std::ws’ parameter_file_parser.h:96:14: note: candidates are: /usr/include/c++/4.6/bits/basic_string.tcc:998:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) /usr/include/c++/4.6/bits/istream.tcc:957:5: note: template&lt;class _CharT2, class _Traits2&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, _CharT2*) /usr/include/c++/4.6/bits/istream.tcc:925:5: note: template&lt;class _CharT, class _Traits&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, _CharT&amp;) /usr/include/c++/4.6/istream:709:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, unsigned char&amp;) /usr/include/c++/4.6/istream:714:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, signed char&amp;) /usr/include/c++/4.6/istream:756:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, unsigned char*) /usr/include/c++/4.6/istream:761:5: note: template&lt;class _Traits&gt; std::basic_istream&lt;char, _Traits&gt;&amp; std::operator&gt;&gt;(std::basic_istream&lt;char, _Traits&gt;&amp;, signed char*) parameter_file_parser.h:96:41: error: no matching function for call to ‘getline(std::istringstream&amp;, std::string&amp;)’ parameter_file_parser.h:96:41: note: candidates are: /usr/include/c++/4.6/bits/basic_string.tcc:1070:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;, _CharT) /usr/include/c++/4.6/bits/basic_string.h:2734:5: note: template&lt;class _CharT, class _Traits, class _Alloc&gt; std::basic_istream&lt;_CharT, _Traits&gt;&amp; std::getline(std::basic_istream&lt;_CharT, _Traits&gt;&amp;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) parameter_file_parser.h:107:8: error: invalid use of incomplete type ‘std::ifstream {aka struct std::basic_ifstream&lt;char&gt;}’ /usr/include/c++/4.6/iosfwd:113:11: error: declaration of ‘std::ifstream {aka struct std::basic_ifstream&lt;char&gt;}’ make: *** [curvilinear_grid.o] Error 1 </code></pre> <p>Code relevant to error messages:</p> <pre><code> // File: parameter_file_parser.h // Desc: Parser of the parameter input file to change default parameter values #ifndef __PARAMETER_FILE_PARSER__ #define __PARAMETER_FILE_PARSER__ #include &lt;iostream&gt; #include &lt;map&gt; #include &lt;string&gt; #include &lt;algorithm&gt; template&lt;class T=double&gt; class PARAMETER_FILE_PARSER { public: PARAMETER_FILE_PARSER(string filename) : parameter_filename(filename) {param_map=NULL;} ~PARAMETER_FILE_PARSER() {if(param_map) delete param_map;} int Parse_Parameter_File(); bool Get_Value(string key, int&amp; value) { if(!param_map) return false; map&lt;string,string&gt;::iterator i = (*param_map).find(key); if(i != (*param_map).end()){ value = atoi(i-&gt;second.c_str()); return true; }else return false; } bool Get_Value(string key, double&amp; value) { if(!param_map) return false; map&lt;string,string&gt;::iterator i = (*param_map).find(key); if(i!=(*param_map).end()){ value = atof(i-&gt;second.c_str()); return true; }else return false; } bool Get_Value(string key, string&amp; value) { if(!param_map) return false; map&lt;string,string&gt;::iterator i = (*param_map).find(key); if(i!=(*param_map).end()){ string raw_val = i-&gt;second; size_t ip1,ip2; ip1 = raw_val.find('"'); ip2 = raw_val.find('"',ip1+1); if(ip1!=string::npos &amp;&amp; ip2!=string::npos){ value = raw_val.substr(ip1+1,ip2-ip1-1); return true; }else return false; }else return false; } /* bool Get_Value(string key, bool&amp; value) { if(!param_map) return false; map&lt;string,string&gt;::iterator i = (*param_map).find(key); if(i!=(*param_map).end()){ switch(i-&gt;second){ //make lowercase case "true": value = true;break; case "false": value = false;break; } return true; }else return false; }else return false; } */ bool Processed() {return param_map!=NULL;} private: map&lt;string, string&gt; *param_map; string parameter_filename; }; //***************************************************************************** // Parsing parameter_filename and populating the parameters map //***************************************************************************** template&lt;class T&gt; int PARAMETER_FILE_PARSER&lt;T&gt;::Parse_Parameter_File() { ifstream pfile(parameter_filename.c_str()); if (!pfile.is_open()) {cout &lt;&lt; "Unable to open parameter file:parameter_filename"&lt;&lt;endl;return 0;} param_map = new map&lt;string, string&gt;(); string line,key, value; while (getline(pfile, line)) { istringstream tokens(line); while(tokens &gt;&gt; ws &amp;&amp; getline(tokens, key, '=') &amp;&amp; tokens &gt;&gt; ws &amp;&amp; getline(tokens, value)){ key.erase(remove(key.begin(),key.end(),' '),key.end()); size_t i = value.find("//"); if(i!=string::npos) { value = value.substr(0,i-1); value.erase(remove(value.begin(),value.end(),' '),value.end()); } (*param_map)[key] = value; } } pfile.close(); return 1; } //***************************************************************************** #endif </code></pre>
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    1. USIsopycnal Oscillation
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      1. POHow to interpret the following error messages in C++
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      1. VTUpMod
    1. COany code that you can put up?
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      1. POHow to interpret the following error messages in C++
      1. USAswin Murugesh
    2. COAdd the code due to which these errors are thrown.
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      1. POHow to interpret the following error messages in C++
      1. USSarim Javaid Khan
    3. CO@SarimJavaidKhan added.
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      1. POHow to interpret the following error messages in C++
      1. USIsopycnal Oscillation
 

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