#includeIn the above example, we created a QVector of integers and initialized it with some values. We used the constEnd function to get a const iterator that points to the imaginary item past the last item in the vector. We then tried to dereference the iterator, which resulted in a null pointer. In conclusion, QVector constEnd is a function in the Qt library, which is used to get a const iterator that points to the imaginary item past the last item in the vector.#include int main() { QVector vector = {1, 2, 3, 4, 5}; auto const_it_end = vector.constEnd(); qDebug() << *const_it_end; // Output: 0x0 return 0; }