Function testMatrix

src/ImathTest/testMatrix.cpp:59–994

void
testMatrix ()
{
    cout << "Testing functions in ImathMatrix.h" << endl;

    union
    {
        float f;
        int   i;
    } nanf;
    nanf.i = 0x7f800001; //  NAN

    union
    {
        double   d;
        uint64_t i;
    } nand;
    nand.i = 0x7ff0000000000001ULL; //  NAN

    {
        cout << "Imath::M22f constructors and equality operators" << endl;

        IMATH_INTERNAL_NAMESPACE::M22f m1;
        m1[0][0] = 99.0f;
        m1[1][1] = 101.0f;

        const IMATH_INTERNAL_NAMESPACE::M22f test (m1);
        assert (test == m1);

        IMATH_INTERNAL_NAMESPACE::M22f test2;
        assert (test != test2);

        IMATH_INTERNAL_NAMESPACE::M22f test3;
        test3.makeIdentity ();
        assert (test2 == test3);

        const float a[2][2] = {
            { 1.0f, 0.0f },
            { 0.0f, 1.0f }
        };
        testMatrix22ArrayConstructor(a);
        
        m1 = 42;
        assert (m1[0][0] == 42 && m1[0][1] == 42 && m1[1][0] == 42 && m1[1][1] == 42);

        const float* i1 = test.getValue();
        assert(i1[0] == 99.0f);
        assert(i1[3] == 101.0f);
        
        float* i2 = m1.getValue();
        assert(i2[0] == 42.0f);
        assert(i2[1] == 42.0f);
        assert(i2[2] == 42.0f);
        assert(i2[3] == 42.0f);

        IMATH_INTERNAL_NAMESPACE::M22f test4;
        test.getValue(test4);
        assert (test == test4);