SOLVED: QVector<QWidget*> problem

[vectori]

Hi All!

This sounds pretty basic stuff but I'm having problem with QVector.

I'm using Qt 4.5.2
The code is below.

in header:

QVector<QWidget*> *m_activeWidgets;

QVector<QWidget*> *m_activeWidgets;

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in cpp:

QWidget* widget = new QWidget();
this->m_activeWidgets->append( widget );

QWidget* widget = new QWidget();
this->m_activeWidgets->append( widget );

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result:
It crashes on append method.
in qvector.h

paste:

void QVector<T>::append(const T &t)
{
    if (d->ref != 1 || d->size + 1 > d->alloc) {   <--- at here  *******************
        const T copy(t);
        realloc(d->size, QVectorData::grow(sizeOfTypedData(), d->size + 1, sizeof(T),
                                           QTypeInfo<T>::isStatic));
        if (QTypeInfo<T>::isComplex)
            new (d->array + d->size) T(copy);
        else
            d->array[d->size] = copy;
    } else {
        if (QTypeInfo<T>::isComplex)
            new (d->array + d->size) T(t);
        else
            d->array[d->size] = t;
    }
    ++d->size;
}

void QVector<T>::append(const T &t)
{
    if (d->ref != 1 || d->size + 1 > d->alloc) {   <--- at here  *******************
        const T copy(t);
        realloc(d->size, QVectorData::grow(sizeOfTypedData(), d->size + 1, sizeof(T),
                                           QTypeInfo<T>::isStatic));
        if (QTypeInfo<T>::isComplex)
            new (d->array + d->size) T(copy);
        else
            d->array[d->size] = copy;
    } else {
        if (QTypeInfo<T>::isComplex)
            new (d->array + d->size) T(t);
        else
            d->array[d->size] = t;
    }
    ++d->size;
}

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paste:qbasicatomic.h

inline bool operator!=(int value) const
    {
        return _q_value != value; <-- crash  *******************
    }

inline bool operator!=(int value) const
    {
        return _q_value != value; <-- crash  *******************
    }

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I don't know is it any help but it seems like _q_value doesn't have any value in debugger.
Any ideas?

- Vectori

[AcerExtensa]

have you forget to create your vector?

m_activeWidgets = new QVector<QWidget*>();

m_activeWidgets = new QVector<QWidget*>();

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[vectori]

Hi,

Thanks for help!
You were absolutely right! I hadn't create that QVector at all..
Too much coding in busy gets thoughts messed up.

Amazingly I used few hours solving this problem
And I hadn't any clue at all.

- Vectori

[AcerExtensa]

Too much coding in busy gets thoughts messed up.

that's for sure....