    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     */

    #include <sal/config.h>
    #include <test/bootstrapfixture.hxx>
    #include "helper/qahelper.hxx"
    #include <document.hxx>
    #include <docsh.hxx>

    #include <rangelst.hxx>

    class Test : public test::BootstrapFixture
    {
    public:
        Test()
            : m_pDoc(nullptr)
        {
        }

        virtual void setUp() override;
        virtual void tearDown() override;

        void testDeleteArea_4Ranges();
        void testDeleteArea_3Ranges();
        void testDeleteArea_3Ranges_Case2();
        void testDeleteArea_3Ranges_Case3();
        void testDeleteArea_3Ranges_Case4();
        void testDeleteArea_3Ranges_Case5();
        void testDeleteArea_2Ranges();
        void testDeleteArea_2Ranges_Case2();
        void testDeleteArea_2Ranges_Case3();
        void testDeleteArea_2Ranges_Case4();
        void testDeleteArea_2Ranges_Case5();
        void testDeleteArea_2Ranges_Case6();
        void testDeleteArea_2Ranges_Case7();
        void testDeleteArea_2Ranges_Case8();
        void testDeleteArea_1Range();
        void testDeleteArea_0Ranges();
        void testJoin_Case1();
        void testJoin_Case2();
        void testJoin_Case3();
        void testJoin_Case4();
        void testJoin_Case5();
        void testGetIntersectedRange();

        void testUpdateReference_DeleteRow();
        void testUpdateReference_DeleteLastRow();
        void testUpdateReference_DeleteCol();

        void testInsertRow();
        void testInsertCol();

        CPPUNIT_TEST_SUITE(Test);
        CPPUNIT_TEST(testDeleteArea_4Ranges);
        CPPUNIT_TEST(testDeleteArea_3Ranges);
        CPPUNIT_TEST(testDeleteArea_3Ranges_Case2);
        CPPUNIT_TEST(testDeleteArea_3Ranges_Case3);
        CPPUNIT_TEST(testDeleteArea_3Ranges_Case4);
        CPPUNIT_TEST(testDeleteArea_3Ranges_Case5);
        CPPUNIT_TEST(testDeleteArea_2Ranges);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case2);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case3);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case4);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case5);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case6);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case7);
        CPPUNIT_TEST(testDeleteArea_2Ranges_Case8);
        CPPUNIT_TEST(testDeleteArea_1Range);
        CPPUNIT_TEST(testDeleteArea_0Ranges);
        CPPUNIT_TEST(testJoin_Case1);
        CPPUNIT_TEST(testJoin_Case2);
        CPPUNIT_TEST(testJoin_Case3);
        CPPUNIT_TEST(testJoin_Case4);
        CPPUNIT_TEST(testJoin_Case5);
        CPPUNIT_TEST(testUpdateReference_DeleteRow);
        CPPUNIT_TEST(testUpdateReference_DeleteLastRow);
        CPPUNIT_TEST(testUpdateReference_DeleteCol);
        CPPUNIT_TEST(testGetIntersectedRange);
        CPPUNIT_TEST(testInsertRow);
        CPPUNIT_TEST(testInsertCol);
        CPPUNIT_TEST_SUITE_END();

    private:
        ScDocument *m_pDoc;
        ScDocShellRef m_xDocShRef;
    };

    void Test::setUp()
    {
        BootstrapFixture::setUp();

        ScDLL::Init();
        m_xDocShRef = new ScDocShell(
            SfxModelFlags::EMBEDDED_OBJECT |
            SfxModelFlags::DISABLE_EMBEDDED_SCRIPTS |
            SfxModelFlags::DISABLE_DOCUMENT_RECOVERY);

        m_pDoc = &m_xDocShRef->GetDocument();
    }

    void Test::tearDown()
    {
        m_xDocShRef.clear();
        BootstrapFixture::tearDown();
    }

    void Test::testDeleteArea_4Ranges()
    {
        ScRangeList aList(ScRange(0,0,0,5,5,0));
        aList.DeleteArea(2,2,0,3,3,0);

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(4), aList.size());
        for(SCCOL nCol = 0; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 0; nRow <= 5; ++nRow)
            {
                if((nCol == 2 || nCol == 3) && ( nRow == 2 || nRow == 3))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_3Ranges()
    {
        ScRangeList aList(ScRange(1,1,0,6,6,0));
        aList.DeleteArea(3,3,0,8,4,0);

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.size());
        for(SCCOL nCol = 1; nCol <= 6; ++nCol)
        {
            for(SCROW nRow = 1; nRow <= 6; ++nRow)
            {
                if((nRow == 3 || nRow == 4) && (nCol >= 3))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(28), aList.GetCellCount());
    }

    void Test::testDeleteArea_3Ranges_Case2()
    {
        ScRangeList aList(ScRange(1,1,0,6,6,0));
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        aList.DeleteArea(0,2,0,2,4,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.size());

        // Column 1-2 && Row 2-4 should not be in the range list. The rest should
        // be in the list.
        for (SCCOL nCol = 1; nCol <= 6; ++nCol)
        {
            for (SCROW nRow = 1; nRow <= 6; ++nRow)
            {
                if ((1 <= nCol && nCol <= 2) && (2 <= nRow && nRow <= 4))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_3Ranges_Case3()
    {
        ScRangeList aList(ScRange(1,5,0,6,11,0));
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        aList.DeleteArea(3,2,0,4,8,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.size());

        // Column 3-4 && Row 5-8 should not be in the range list.
        for (SCCOL nCol = 1; nCol <= 6; ++nCol)
        {
            for (SCROW nRow = 5; nRow <= 11; ++nRow)
            {
                if ((3 <= nCol && nCol <= 4) && (5 <= nRow && nRow <= 8))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_3Ranges_Case4()
    {
        ScRangeList aList(ScRange(1,5,0,6,11,0));
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        aList.DeleteArea(3,5,0,4,5,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.size());

        // Column 3-4 && Row 5 should not be in the range list.
        for (SCCOL nCol = 1; nCol <= 6; ++nCol)
        {
            for (SCROW nRow = 5; nRow <= 11; ++nRow)
            {
                if ((3 <= nCol && nCol <= 4) && 5 == nRow )
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_3Ranges_Case5()
    {
        ScRangeList aList(ScRange(1,5,0,6,11,0));
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        aList.DeleteArea(6,7,0,6,9,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.size());

        // Column 6 && Row 7-9 should not be in the range list.
        for (SCCOL nCol = 1; nCol <= 6; ++nCol)
        {
            for (SCROW nRow = 5; nRow <= 11; ++nRow)
            {
                if ( nCol == 6 && (7 <= nRow && nRow <= 9))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges()
    {
        ScRangeList aList(ScRange(0,0,0,5,5,5));
        ScRangeList aList2(aList);

        aList.DeleteArea(4,4,0,6,7,0);
        aList2.DeleteArea(4,4,0,6,7,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList2.size());

        for(SCCOL nCol = 0; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 0; nRow <= 5; ++nRow)
            {
                if(nCol>=4 && nRow >= 4)
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case2()
    {
        ScRangeList aList(ScRange(1,1,0,1,5,0));
        aList.DeleteArea(0,3,0,MAXCOL,3,0);

        for(SCROW nRow = 1; nRow <= 5; ++nRow)
        {
            if(nRow == 3)
                CPPUNIT_ASSERT(!aList.In(ScRange(1,3,0)));
            else
                CPPUNIT_ASSERT(aList.In(ScRange(1,nRow,0)));
        }
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(4), aList.GetCellCount());
    }

    void Test::testDeleteArea_2Ranges_Case3()
    {
        ScRangeList aList(ScRange(0,5,0,2,10,0));
        aList.DeleteArea(2,3,0,3,7,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 2 Row 5-7 shouldn't be in the list.
        for (SCCOL nCol = 0; nCol <= 2; ++nCol)
        {
            for (SCROW nRow = 5; nRow <= 10; ++nRow)
            {
                if (nCol == 2 && (5 <= nRow && nRow <= 7))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol,nRow,0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol,nRow,0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case4()
    {
        ScRangeList aList(ScRange(2,3,0,4,7,0));
        aList.DeleteArea(0,1,0,2,5,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 2 Row 3-5 shouldn't be in the list.
        for (SCCOL nCol = 2; nCol <= 4; ++nCol)
        {
            for (SCROW nRow = 3; nRow <= 7; ++nRow)
            {
                if (nCol == 2 && (3 <= nRow && nRow <= 5))
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol,nRow,0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol,nRow,0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case5()
    {
        ScRangeList aList(ScRange(2,2,0,5,5,0));
        aList.DeleteArea(4,5,0,5,5,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 4 and 5 Row 5 shouldn't be in the list.
        for(SCCOL nCol = 2; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 2; nRow <= 5; ++nRow)
            {
                if(nRow == 5 && 4 <= nCol)
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case6()
    {
        ScRangeList aList(ScRange(2,2,0,5,5,0));
        aList.DeleteArea(4,2,0,5,2,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 4 and 5 Row 2 shouldn't be in the list.
        for(SCCOL nCol = 2; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 2; nRow <= 5; ++nRow)
            {
                if(nRow == 2 && 4 <= nCol)
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case7()
    {
        ScRangeList aList(ScRange(2,2,0,5,5,0));
        aList.DeleteArea(2,5,0,2,5,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 2 Row 5 shouldn't be in the list.
        for(SCCOL nCol = 2; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 2; nRow <= 5; ++nRow)
            {
                if(nRow == 5 && nCol == 2)
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_2Ranges_Case8()
    {
        ScRangeList aList(ScRange(2,2,0,5,5,0));
        aList.DeleteArea(2,2,0,3,2,0);
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());

        // Column 2 & 3 Row 2 shouldn't be in the list.
        for(SCCOL nCol = 2; nCol <= 5; ++nCol)
        {
            for(SCROW nRow = 2; nRow <= 5; ++nRow)
            {
                if(nRow == 2 && nCol <= 3)
                    CPPUNIT_ASSERT(!aList.In(ScRange(nCol, nRow, 0)));
                else
                    CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
        }
    }

    void Test::testDeleteArea_1Range()
    {
        ScRangeList aList(ScRange(1,1,0,3,3,0));
        aList.DeleteArea(1,1,0,2,3,0);

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());

        for(SCROW nRow = 1; nRow <= 3; ++nRow)
        {
            CPPUNIT_ASSERT(aList.In(ScRange(3,nRow,0)));
        }
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(3), aList.GetCellCount());
    }

    void Test::testDeleteArea_0Ranges()
    {
        ScRangeList aList(ScRange(1,1,0,3,3,0));
        aList.DeleteArea(1,1,0,3,3,0);

        CPPUNIT_ASSERT(aList.empty());

        ScRangeList aList2(ScRange(1,1,0,3,3,0));
        aList2.DeleteArea(0,0,0,4,4,0);

        CPPUNIT_ASSERT(aList.empty());
    }

    void Test::testJoin_Case1()
    {
        ScRangeList aList;
        aList.push_back(ScRange(1,1,0,3,3,0));
        aList.Join(ScRange(4,1,0,6,3,0));

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL( ScRange(1,1,0,6,3,0), aList[0]);
    }

    void Test::testJoin_Case2()
    {
        ScRangeList aList;
        aList.push_back(ScRange(1,1,0,3,3,0));
        aList.push_back(ScRange(4,1,0,6,3,0));
        aList.push_back(ScRange(7,1,0,9,3,0));

        aList.Join(aList[2], true);

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,9,3,0), aList[0]);
    }

    void Test::testJoin_Case3()
    {
        ScRangeList aList;
        aList.Join(ScRange(1,1,0,6,6,0));
        aList.Join(ScRange(3,3,0,4,4,0));

        // The second one should have been swallowed by the first one
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,6,6,0), aList[0]);

        // Add a disjoint one
        aList.Join(ScRange(8,8,0,9,9,0));

        // Should be two ones now
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());
        // The first one should still be as is
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,6,6,0), aList[0]);
        // Ditto for the second one
        CPPUNIT_ASSERT_EQUAL(ScRange(8,8,0,9,9,0), aList[1]);
    }

    void Test::testJoin_Case4()
    {
        ScRangeList aList;
        aList.Join(ScRange(1,1,0,2,6,0));
        // Join a range that overlaps it and extends it vertically
        aList.Join(ScRange(1,4,0,2,8,0));

        // The one range in the list should have been extended
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,2,8,0), aList[0]);

        // Join a range that overlaps it and extends it horizontally
        aList.Join(ScRange(2,1,0,4,8,0));

        // Again, should have just been extended
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,4,8,0), aList[0]);

        // And then the same but on top / to the left of existing range
        ScRangeList aList2;
        aList2.Join(ScRange(4,4,0,8,8,0));
        aList2.Join(ScRange(4,1,0,8,6,0));

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList2.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(4,1,0,8,8,0), aList2[0]);

        aList2.Join(ScRange(1,1,0,6,8,0));

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList2.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(1,1,0,8,8,0), aList2[0]);
    }

    void Test::testJoin_Case5()
    {
        ScRangeList aList;
        aList.Join(ScRange(0,0,0,4,4,0));
        aList.Join(ScRange(8,0,0,10,4,0));

        // Nothing special so far, two disjoint ranges
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(2), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(0,0,0,4,4,0), aList[0]);
        CPPUNIT_ASSERT_EQUAL(ScRange(8,0,0,10,4,0), aList[1]);

        // This should join the two ranges into one
        aList.Join(ScRange(5,0,0,9,4,0));

        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aList.size());
        CPPUNIT_ASSERT_EQUAL(ScRange(0,0,0,10,4,0), aList[0]);
    }

    void Test::testUpdateReference_DeleteRow()
    {
        ScRangeList aList(ScRange(1,1,0,4,4,0));
        bool bUpdated = aList.UpdateReference(URM_INSDEL, m_pDoc, ScRange(0,3,0,MAXCOL,MAXROW,0), 0, -1, 0);
        CPPUNIT_ASSERT(bUpdated);

        for(SCCOL nCol = 1; nCol <= 4; ++nCol)
        {
            for(SCROW nRow = 1; nRow <= 3; ++nRow)
            {
                CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
            CPPUNIT_ASSERT(!aList.In(ScRange(nCol, 4, 0)));
        }
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(12), aList.GetCellCount());

        ScRangeList aList2(ScRange(2,2,0,2,2,0));
        aList2.UpdateReference(URM_INSDEL, m_pDoc, ScRange(0,3,0,MAXCOL,MAXROW,0), 0, -1, 0);
        CPPUNIT_ASSERT(aList2.empty());
    }

    void Test::testUpdateReference_DeleteLastRow()
    {
        ScRangeList aList(ScRange(1,1,0,4,4,0));
        bool bUpdated = aList.UpdateReference(URM_INSDEL, m_pDoc, ScRange(0,4,0,MAXCOL,4,0), 0, -1, 0);
        CPPUNIT_ASSERT(bUpdated);
    }

    void Test::testUpdateReference_DeleteCol()
    {
        ScRangeList aList(ScRange(1,1,0,4,4,0));
        bool bUpdated = aList.UpdateReference(URM_INSDEL, m_pDoc, ScRange(3,0,0,MAXCOL,MAXROW,0), -1, 0, 0);
        CPPUNIT_ASSERT(bUpdated);

        for(SCROW nRow = 1; nRow <= 4; ++nRow)
        {
            for(SCCOL nCol = 1; nCol <= 3; ++nCol)
            {
                CPPUNIT_ASSERT(aList.In(ScRange(nCol, nRow, 0)));
            }
            CPPUNIT_ASSERT(!aList.In(ScRange(4, nRow, 0)));
        }
        CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(12), aList.GetCellCount());
    }

    void Test::testGetIntersectedRange()
    {
        ScRangeList aList(ScRange(2, 2, 0, 5, 5, 0));
        ScRangeList aIntersecting = aList.GetIntersectedRange(ScRange(0, 0, 0, 3, 3, 0));
        CPPUNIT_ASSERT_EQUAL(ScRangeList(ScRange(2,2,0,3,3,0)), aIntersecting);
    }

    void Test::testInsertRow()
    {
        ScRangeList aList(ScRange(1,1,0,4,4,0));
        aList.InsertRow(0, 0, MAXCOL, 5, 2);
        CPPUNIT_ASSERT_EQUAL(ScRangeList(ScRange(1,1,0,4,6,0)), aList);
    }

    void Test::testInsertCol()
    {
        ScRangeList aList(ScRange(1,1,0,4,4,0));
        aList.InsertCol(0, 0, MAXROW, 5, 2);
        CPPUNIT_ASSERT_EQUAL(ScRangeList(ScRange(1,1,0,6,4,0)), aList);
    }

    CPPUNIT_TEST_SUITE_REGISTRATION(Test);

    CPPUNIT_PLUGIN_IMPLEMENT();
    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V560 A part of conditional expression is always true: 1 <= nCol.

↑ V560 A part of conditional expression is always true: 3 <= nRow.

↑ V560 A part of conditional expression is always true: 5 <= nRow.

↑ V560 A part of conditional expression is always true: 5 <= nRow.