New gcc 4.7 c++ error

Orion Poplawski orion at cora.nwra.com
Mon Jan 30 18:59:17 UTC 2012


On 01/30/2012 11:49 AM, Kalev Lember wrote:
> On 01/30/2012 08:24 PM, Orion Poplawski wrote:
>> I am getting the following error building paraview with gcc 4.7:
>>
>> In file included from
>> /builddir/build/BUILD/ParaView-3.12.0/Qt/Core/pqAnimationScene.cxx:57:0:
>> /builddir/build/BUILD/ParaView-3.12.0/Qt/Core/pqServerManagerSelectionModel.h:75:30:
>> error: calls to overloaded operators cannot appear in a constant-expression
>>
>> code snippet:
>>
>> class PQCORE_EXPORT pqServerManagerSelectionModel : public QObject
>> {
>>    Q_OBJECT
>> public:
>>    /// Supported selections flags. These are a subset of
>>    /// QItemSelectionModel::SelectionFlags.
>>    enum SelectionFlag {
>>      NoUpdate       = QItemSelectionModel::NoUpdate,
>>      Clear          = QItemSelectionModel::Clear,
>>      Select         = QItemSelectionModel::Select,
>>      Deselect       = QItemSelectionModel::Deselect,
>>      ClearAndSelect = Clear | Select
>
> Looks like gcc cannot resolve Clear and Select to a
> constant-expression and you'll need to spell out the
> scope. Try changing the line above to:
>      ClearAndSelect = QItemSelectionModel::Clear | QItemSelectionModel::Select
>
>

I did try that, but no go.  I think the | operator is overloaded somewhere.

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA, Boulder Office                  FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com


More information about the devel mailing list