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    Hello,<br>
    <br>
    I'm trying to expose 2 classes from a Rcpp module:<br>
    <br>
    class Portfolio{<br>
      private:<br>
         std::string portfolioId, description;<br>
      public:<br>
          Portfolio(std::string portfolioId, std::string description) <br>
          : portfolioId(portfolioId), description(description) {} <br>
          <br>
          std::string getPortfolioId() {return portfolioId;} const<br>
          void setPortfolioId(const std::string&)
    {this->portfolioId = portfolioId;}<br>
          <br>
          std::string getDescription() {return description;} const<br>
          void setDescription(const std::string&
    description){this->description = description;}<br>
    };<br>
    <br>
    class PortfolioDataAccess{<br>
        private:<br>
        mongo::DBClientConnection c;<br>
        <br>
        public:<br>
        PortfolioDataAccess();<br>
        virtual Portfolio read(std::string portfolioId);<br>
        virtual void create(std::string portfolioId, std::string
    description);<br>
        <br>
      };<br>
    <br>
    <br>
    <br>
    <br>
    RCPP_MODULE(riskceteraPortfolio) {<br>
      class_<riskcetera::Portfolio>( "Portfolio" )<br>
      .constructor<std::string, std::string>()<br>
      .method("id", &riskcetera::Portfolio::getPortfolioId)<br>
      .method("description", &riskcetera::Portfolio::getDescription)<br>
      ;<br>
      <br>
    class_<riskcetera::PortfolioDataAccess>("PortfolioAccess")<br>
      .constructor()<br>
      .method("read", &riskcetera::PortfolioDataAccess::read)<br>
      ;<br>
    }  <br>
    <br>
    When trying to compile the module I get the following error:<br>
    <br>
    <pre style="width: 100%;" class="GNVMTOMCABB ace_text-layer ace_line GNVMTOMCET" tabindex="0"><big><tt><span class="GNVMTOMCABB">/riskcetera/home/aludin/R/x86_64-pc-linux-gnu-library/3.0/Rcpp/include/Rcpp/internal/wrap.h:474:7: error: no viable conversion from 'const riskcetera::Portfolio' to 'SEXP' (aka 'SEXPREC *')
</span><span class="GNVMTOMCABB">        SEXP x = object ; </span></tt></big></pre>
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