Error message in object pointer definition. Don't know what means.

Good day!

What means the following error message and how can i fix it? I'm using QtCreator-5.3.2 with GCC-4.6.1 64bit.

Quote:

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warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default]

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Error pointing to this code line:

Code:

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class Data : public QDialog
{
//...
    public:
    Historic *hs = NULL; Message error here.

---

Thanks!

You should use initializer lists for member parameter initialization:

Code:

---

class Data : public QDialog, hs(NULL)
    {
    //...
    public:
    Historic *hs;

---

Edit: And yes, you should also add c++11 to your CONFIG statement in your *.pro file too to enable the c++11 standard for many different reasons.

To use this feature you need to enable C++11.

Code:

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CONFIG += c++11
or
QMAKE_CXXFLAGS += -std=c++11

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in your .pro file.

Other way: set pointer in constructor.