Function testMakeInfinite

src/ImathTest/testBox.cpp:169–225

template <class T>
void
testMakeInfinite (const char* type)
{
    cout << "    makeInfinite() for type " << type << endl;

    //
    // Infinite box
    //
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b;
        b.makeInfinite ();
        assert (
            b.min == T (T::baseTypeLowest ()) &&
            b.max == T (T::baseTypeMax ()));

        for (unsigned int i=0; i<b.min.dimensions(); i++)
        {
            IMATH_INTERNAL_NAMESPACE::Box<T> c = b;
            c.max[i] = 0;
            assert (!c.isInfinite());

            c = b;
            c.min[i] = 0;
            assert (!c.isInfinite());
        }
    }

    //
    // Non-empty, has volume
    //
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b (T (-1), T (1));
        b.makeInfinite ();
        assert (
            b.min == T (T::baseTypeLowest ()) &&
            b.max == T (T::baseTypeMax ()));
    }

    //
    // Non-empty, no volume
    // Boxes are:
    //    2D: [(0, 0),       (0, 1)      ]
    //    3D: [(0, 0, 0),    (0, 0, 1)   ]
    //    4D: [(0, 0, 0, 0), (0, 0, 0, 1)]
    //
    {
        T min (0);
        T max (0);
        max[T::dimensions () - 1] = 1;

        IMATH_INTERNAL_NAMESPACE::Box<T> b (min, max);
        b.makeInfinite ();
        assert (
            b.min == T (T::baseTypeLowest ()) &&
            b.max == T (T::baseTypeMax ()));
    }
}