[Plugin-Dev] invalid use of "::" when using non-Qt-namespace with QDebug
I'm writing a Qt-Plugin access MongoDB from QML.
But anytime I add @#include <QDebug>@ to my source file or header file, the compilation of my QObject-derived-class that uses types in the mongo namespace failes with the error
@/usr/include/qt4/QtCore/qvector.h:83: Error:invalid use of ‘::’@
It does not matter if I write @use namespace mongo@ or not (If I don't write that, I must put "mongo::" everywhere any the resulting error message states @Error:invalid use of ‘mongo::’@)
But if I don't include QDebug, everything works fine!
The head of my .pro file looks like this:
@TEMPLATE = lib
CONFIG += qt plugin
QT += core declarative
Can anybody tell me what I'm doing wrong here?
Edit: moved to General as it doesn't seem to be a QML/Quick specific issue; Andre
can you please check, whether it also appears if you include qvector directly and not QDebug? That would state whether the problem is with qdebug or qvector.
If I look at QVector line 83, I see:
static QVectorData *malloc(int sizeofTypedData, int size, int sizeofT, QVectorData *init);
But that might be different on your machine, as I might use different version / license.
Please have a look what is located in QVector.h line 83 and post it here
Yes, I also have this line at this position in the file.
But I figured out how to solve it.
Don't ask my why, but it's simple: just put @#include <QDebug>@ at the very top of the .cpp file.
If it is the first file that is included, it works!
what did you includa before on top (or before QDebug)?
It must have some influence on that lines...