QVector的push_back导致程序崩溃，什么原因？ [复制链接]

    Router Router2Add;
    ……
    RouterList.push_back(Router2Add); //添加。

template <typename T>
void QVector<T>::append(const T &t)
{
    if (d->ref != 1 || d->size + 1 > d->alloc) {
        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;
}

    if (d->ref != 1 || d->size + 1 > d->alloc) {