Subclassing QThread — undefined reference to vtable
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I understand that the undefined reference to vtable error means that I have a pure virtual function that must be implemented. I cannot for the life of me find what I am missing to make this class compile.
WaspThread.h
@#include <QThread>
class WaspThread : public QThread
{
Q_OBJECTprotected:
void run();
};@WaspThread.cpp
@#include "WaspThread.h"
void WaspThread::run()
{}@
@SOURCES += WaspThread.cpp
HEADERS += WaspThread.h@I have the header and source files in my project file. I have tried cleaning out my build directory and re-running qmake multiple times.
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I just figured out the problem. I had forgotten to export the WaspThread class so that the executable utilizing the DLL could find WaspThread. It was a silly mistake. I made it because I forgot that in Windows land you need to export everything whereas in Linux you don't.
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Hi,
Got also hit by that one, did you saw that Qt provides macros to help you export the class cross-platform style ?
On a side note, since you have it working, can you also update the thread title prepending [solved] so other forum users may know a solution has been found :)
