Examples of errors detected by the V746 diagnostic

V746. Object slicing. An exception should be caught by reference rather than by value.

Oracle VM Virtual Box

V746 Object slicing. An exception should be caught by reference rather than by value. extpackutil.cpp 257

RTCString *VBoxExtPackLoadDesc(....)
{
  ....
  xml::XmlFileParser  Parser;
  try
  {
    Parser.read(szFilePath, Doc);
  }
  catch (xml::XmlError Err) // <=
  {
    return new RTCString(Err.what());
  }
  ....
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. extpackutil.cpp 330

OpenToonz

V746 Object slicing. An exception should be caught by reference rather than by value. iocommand.cpp 1620

bool IoCmd::saveLevel(....)
{
  ....
  try {
    sl->save(fp, TFilePath(), overwritePalette);
  } catch (TSystemException se) { // <=
    QApplication::restoreOverrideCursor();
    MsgBox(WARNING, QString::fromStdWString(se.getMessage()));
    return false;
  } catch (...) {
    ....
  }
  ....
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. iocommand.cpp 2650
• V746 Object slicing. An exception should be caught by reference rather than by value. projectpopup.cpp 522
• V746 Object slicing. An exception should be caught by reference rather than by value. projectpopup.cpp 537
• And 8 additional diagnostic messages.

Open X-Ray Engine

V746 Object slicing. An exception should be caught by reference rather than by value. object_item_script.cpp 39

ObjectFactory::ServerObjectBaseClass *
CObjectItemScript::server_object    (LPCSTR section) const
{
  ObjectFactory::ServerObjectBaseClass *object = nullptr;

  try {
    object = m_server_creator(section);
  }
  catch(std::exception e) {
    Msg("Exception [%s] raised while creating server object "
        "from section [%s]", e.what(),section);
    return        (0);
  }
  ....
}

Notepad++

V746 Object slicing. An exception should be caught by reference rather than by value. filedialog.cpp 183

TCHAR* FileDialog::doOpenSingleFileDlg()
{
  ....
  try {
    fn = ::GetOpenFileName(&_ofn)?_fileName:NULL;

    if (params->getNppGUI()._openSaveDir == dir_last)
    {
      ::GetCurrentDirectory(MAX_PATH, dir);
      params->setWorkingDir(dir);
    }
  } catch(std::exception e) {                             // <=
    ::MessageBoxA(NULL, e.what(), "Exception", MB_OK);
  } catch(...) {
    ::MessageBox(NULL, TEXT("....!!!"), TEXT(""), MB_OK);
  }

  ::SetCurrentDirectory(dir);

  return (fn);
}

Scilab

V746 Object slicing. An exception should be caught by reference rather than by value. sci_scinotes.cpp 48

int sci_scinotes(char * fname, void* pvApiCtx)
{
  ....
  try
  {
    callSciNotesW(NULL, 0);
  }
  catch (GiwsException::JniCallMethodException exception)
  {
    Scierror(999, "%s: %s\n", fname,
      exception.getJavaDescription().c_str());
  }
  catch (GiwsException::JniException exception)
  {
    Scierror(999, "%s: %s\n", fname,
      exception.whatStr().c_str());
  }
  ....
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. sci_builddoc.cpp 270
• V746 Object slicing. An exception should be caught by reference rather than by value. sci_closescinotesfromscilab.cpp 45
• V746 Object slicing. An exception should be caught by reference rather than by value. sci_closescinotesfromscilab.cpp 50
• And 9 additional diagnostic messages.

Tizen

V746 Object slicing. An exception should be caught by reference rather than by value. CAudioInput.cpp 225

void CAudioInput::initialize() throw(CAudioError) {
  ....
  } catch (CAudioError err) {
    finalize();
    throw err;
  }
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. CAudioInput.cpp 298
• V746 Object slicing. An exception should be caught by reference rather than by value. CAudioInput.cpp 334
• V746 Object slicing. An exception should be caught by reference rather than by value. CAudioInput.cpp 368
• And 28 additional diagnostic messages.

Rosegarden

V746 Object slicing. An exception should be caught by reference rather than by value. MupExporter.cpp 197

timeT MupExporter::writeBar(....)
{
  ....
  try {
      // tuplet compensation, etc
      Note::Type type = e->get<Int>(NOTE_TYPE);
      int dots = e->get
                 <Int>(NOTE_DOTS);
      duration = Note(type, dots).getDuration();
  } catch (Exception e) { // no properties
      RG_WARNING << "WARNING: ...: " << e.getMessage();
  }
  ....
}

class BadSoundFileException : public Exception

Ardour

V746 Object slicing. An exception should be caught by reference rather than by value. ardour_ui.cc 3806

int
ARDOUR_UI::build_session (....)
{
  ....
  try {
    new_session = new Session (....);
  }

  catch (SessionException e) {
    ....
    return -1;
  }
  catch (...) {
    ....
    return -1;
  }
  ....
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. ardour_ui.cc 3670
• V746 Object slicing. An exception should be caught by reference rather than by value. luawindow.cc 467
• V746 Object slicing. An exception should be caught by reference rather than by value. luawindow.cc 518
• And 2 additional diagnostic messages.

NCBI Genome Workbench

V746 Object slicing. An exception should be caught by reference rather than by value. cobalt.cpp 247

void
CMultiAligner::SetQueries(const vector< CRef<objects::CBioseq> >& queries)
{
  ....
  try {
    seq_loc->SetId(*it->GetSeqId());
  }
  catch (objects::CObjMgrException e) {
    NCBI_THROW(CMultiAlignerException, eInvalidInput,
               (string)"Missing seq-id in bioseq. " + e.GetMsg());
  }
  m_tQueries.push_back(seq_loc);
  ....
}

Similar errors can be found in some other places:

• V746 Object slicing. An exception should be caught by reference rather than by value. agp_validate_reader.cpp 562
• V746 Object slicing. An exception should be caught by reference rather than by value. aln_build_app.cpp 320
• V746 Object slicing. An exception should be caught by reference rather than by value. aln_test_app.cpp 458
• And 4 additional diagnostic messages.

Xenia

V746 Object slicing. An exception should be caught by reference rather than by value. config.cc 58

std::shared_ptr<cpptoml::table>
  ParseConfig(const std::filesystem::path& config_path)
{
  try
  {
    return ParseFile(config_path);
  }
  catch (cpptoml::parse_exception e)                         // <=
  {
    xe::FatalError(
      fmt::format("Failed to parse config file '{}':\n\n{}",
                  xe::path_to_utf8(config_path),
                  e.what())
    );
    return nullptr;
  }
}