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Undefined reference to

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  • R Offline
    R Offline
    retroguy
    wrote on last edited by
    #1

    @#include <vector>
    #include <string>
    #include <vector>
    #include <QString>
    #include <QVector>
    #include <Method.h>

    using namespace::std;

    QVector<QString> bogus(vector<string> & vec)
    {
    QVector< QString > result;

    return result;
    

    }

    QVector<QVector <QString> > bogusMa(vector<vector<string> > & vec)
    {

    QVector< QVector<QString> > result;
    
    
    return result;
    

    }
    @

    @#include <QCoreApplication>
    #include <vector>
    #include <string>
    #include <QString>
    #include <QVector>
    #include <Method.h>

    using namespace std;

    int main(int argc, char *argv[])
    {

    QVector< QString> vec;
    
    QVector< QVector < QString> > mat;
    
    vector<string> vect;
    
    vector<vector<string> > matr;
    
    
    Method::bogus(vect);
    
    vec = Method::bogus(vect);
    
    mat = Method::bogusMa(matr);
    

    }
    @

    @#ifndef METHOD_H
    #define METHOD_H

    #include <vector>
    #include <string>
    #include <QString>
    #include <QVector>
    #include <Method.h>

    class Method{

    public:
    static QVector<QString> bogus(std::vectorstd::string & vec);
    static QVector<QVector <QString> > bogusMa(std::vector<std::vectorstd::string > & vec);

    };

    #endif // METHOD_H

    @

    I am not sure what's causing the error, but I know it has something to do with QStrings

    1 Reply Last reply
    0
    • EddyE Offline
      EddyE Offline
      Eddy
      wrote on last edited by
      #2

      Hi retroguy,

      Welcome to the Devnet forums.

      Could you post your error output more in detail?

      Qt Certified Specialist
      www.edalsolutions.be

      1 Reply Last reply
      0
      • R Offline
        R Offline
        retroguy
        wrote on last edited by
        #3

        error: undefined reference to `Method::bogusMa(std::vector<std::vector<std::string, std::allocatorstd::string >, std::allocator<std::vector<std::string, std::allocatorstd::string > > >&)'

        error: undefined reference to `Method::bogus(std::vector<std::string, std::allocatorstd::string >&)'

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        • JohanSoloJ Offline
          JohanSoloJ Offline
          JohanSolo
          wrote on last edited by JohanSolo
          #4

          In the file where the functions bogus and bogusMa are defined, you're missing a Method::, it should read like this:

          QVector<QString> Method::bogus(vector<string> & vec)
          {
              QVector< QString > result;
           
           
              return result;
           
          }
          
          QVector<QVector <QString> > Method::bogusMa(vector<vector<string> > & vec)
          {
           
              QVector< QVector<QString> > result;
           
           
              return result;
           
          }
          

          `They did not know it was impossible, so they did it.'
          -- Mark Twain

          1 Reply Last reply
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