Databases
StackOverflow2013
Postsdbo
POUndefined Symbols for architecture x86_64: Compiling problems
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POUndefined Symbols for architecture x86_64: Compiling problems
    primarykey
    data
    text
    <p>So I am trying to start an assignment, my professor gives us a Main.cpp, Main.h, Scanner.cpp, Scanner.h, and some other utilities.</p> <p>My job is to create a Similarity class to compare documents using the cosine and Jaccard coefficients. However, I can not seem to get the project linked correctly, therefore I am unable to start on the actual code.</p> <p>After trying for several hours to see what I am doing wrong, I need fresh eyes to see what I am doing wrong, I suspect it is obvious.</p> <p>Here is the Main.cpp</p> <pre><code>#include "Main.h" using namespace std; static const string TAG = "Main: "; int main(int argc, char *argv[]) { string inStreamName; string logStreamName; string outStreamName; ofstream outStream; string timeCallOutput; Scanner inStream; Similarity similarity; /////////////////////////////////////////////////////////////// // Boilerplate for naming files and opening files Utils::CheckArgs(3, argc, argv, "infilename outfilename logfilename"); outStreamName = static_cast&lt;string&gt;(argv[2]); logStreamName = static_cast&lt;string&gt;(argv[3]); Utils::FileOpen(outStream, outStreamName); Utils::LogFileOpen(logStreamName); timeCallOutput = Utils::timecall("beginning"); Utils::logStream &lt;&lt; timeCallOutput &lt;&lt; endl; Utils::logStream &lt;&lt; TAG &lt;&lt; "Beginning execution" &lt;&lt; endl; Utils::logStream &lt;&lt; TAG &lt;&lt; "outfile '" &lt;&lt; outStreamName &lt;&lt; "'" &lt;&lt; endl; Utils::logStream &lt;&lt; TAG &lt;&lt; "logfile '" &lt;&lt; logStreamName &lt;&lt; "'" &lt;&lt; endl; Utils::logStream.flush(); /////////////////////////////////////////////////////////////// // What follows here is the real work of this code. // read the entire input file and echo it back // compute the two similarity coefficients inStreamName = static_cast&lt;string&gt;(argv[1]); inStream.openFile(inStreamName); Utils::logStream &lt;&lt; TAG &lt;&lt; "infile '" &lt;&lt; inStreamName &lt;&lt; "'" &lt;&lt; endl; Utils::logStream.flush(); similarity.readData(inStream); outStream &lt;&lt; TAG &lt;&lt; "Data Begin\n" &lt;&lt; similarity.toString() &lt;&lt; endl; outStream &lt;&lt; TAG &lt;&lt; "Data End\n" &lt;&lt; endl; outStream.flush(); inStream.close(); outStream &lt;&lt; TAG &lt;&lt; "Begin similarity computation" &lt;&lt; endl; outStream &lt;&lt; TAG &lt;&lt; "Maximum Jaccard similarity:\n" &lt;&lt; similarity.maxJaccard() &lt;&lt; endl; outStream &lt;&lt; TAG &lt;&lt; "Maximum cosine similarity:\n" &lt;&lt; similarity.maxCosine() &lt;&lt; endl; outStream &lt;&lt; TAG &lt;&lt; "End similarity computation" &lt;&lt; endl; outStream.flush(); /////////////////////////////////////////////////////////////// // Boilerplate for terminating gracefully Utils::logStream &lt;&lt; TAG &lt;&lt; "Ending execution" &lt;&lt; endl; timeCallOutput = Utils::timecall("ending"); Utils::logStream &lt;&lt; timeCallOutput &lt;&lt; endl; Utils::logStream.flush(); outStream.flush(); Utils::FileClose(outStream); Utils::FileClose(Utils::logStream); return 0; } </code></pre> <p>And the Main.h</p> <pre><code>#ifndef MAIN_H #define MAIN_H #include "../../Utilities/Utils.h" #include "../../Utilities/Scanner.h" #include "Similarity.h" class Main { public: int main(); virtual ~Main(); private: }; #endif // MAIN_H </code></pre> <p>My Similarity.cpp</p> <pre><code>#include "Similarity.h" using namespace std; void readData(Scanner&amp; inStream){ } string maxCosine(){ return "cosine"; } string maxJaccard(){ return "jaccard"; } string toString(){ return "toString"; } </code></pre> <p>And finally my Similarity.h:</p> <pre><code>#ifndef SIMILARITY_H #define SIMILARITY_H #include "../../Utilities/Scanner.h" class Similarity { public: Similarity(); virtual ~Similarity(); void readData(Scanner&amp; inStream); string maxCosine(); string maxJaccard(); string toString(); private: }; #endif </code></pre> <p>When I use the makefile he provided, and the one I have to use in order for his script to work to grade it I get this error:</p> <pre><code>g++ -O3 -Wall -o Similarity.o -c Similarity.cpp g++ -O3 -Wall -o Aprog Main.o Similarity.o Scanner.o ScanLine.o Utils.o Undefined symbols for architecture x86_64: "Similarity::maxJaccard()", referenced from: _main in Main.o "Similarity::readData(Scanner&amp;)", referenced from: _main in Main.o "Similarity::toString()", referenced from: _main in Main.o "Similarity::maxCosine()", referenced from: _main in Main.o "Similarity::Similarity()", referenced from: _main in Main.o "Similarity::~Similarity()", referenced from: _main in Main.o ld: symbol(s) not found for architecture x86_64 collect2: ld returned 1 exit status make: *** [Aprog] Error 1 </code></pre> <p>Thank you for reading through all that, any suggestions or solutions would be greatly appreciated.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USTrevor Hutto
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POUndefined Symbols for architecture x86_64: Compiling problems
      1. This table or related slice is empty.
      1. VTUpMod
    1. COTry it again adding `-m32` to every command line.
      singulars
      1. POUndefined Symbols for architecture x86_64: Compiling problems
      1. USKerrek SB
    2. COIn Similarity.cpp, you are defining maxJaccard, not Similarity::maxJaccard.
      singulars
      1. POUndefined Symbols for architecture x86_64: Compiling problems
      1. USMarc Glisse
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload