Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ //! [0]
++ qDebug() << "Widget" << widget << "at position" << widget->pos();
++ //! [0]
++
++
++ //! [1]
++ char *alloc(int size)
++ {
++ Q_ASSERT(size > 0);
++ char *ptr = new char[size];
++ Q_CHECK_PTR(ptr);
++ return ptr;
++ }
++ //! [1]
++
++
++ //! [2]
++ char *alloc(int size)
++ {
++ char *ptr;
++ Q_CHECK_PTR(ptr = new char[size]); // WRONG
++ return ptr;
++ }
++ //! [2]