Function testSize

src/ImathTest/testBox.cpp:606–661

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

    //
    // Size of empty box.
    //
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b;
        assert (b.size () == T (0));
    }

    //
    // Size of non-empty, has-volume box.
    // Boxes are:
    //    2D: [(-1, -1),         (1, 1)       ]
    //    3D: [(-1, -1, -1),     (1, 1, 1)    ]
    //    4D: [(-1, -1, -1, -1), (1, 1, 1, 1) ]
    //
    // and
    //
    //    2D: [(-1, -2),         (1, 2)       ]
    //    3D: [(-1, -2, -3),     (1, 2, 3)    ]
    //    4D: [(-1, -2, -3, -4), (1, 2, 3, 4) ]
    //
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b0 (T (-1), T (1));
        assert (b0.size () == T (2));

        T p;
        for (unsigned int i = 0; i < T::dimensions (); i++)
        {
            p[i] = static_cast<typename T::BaseType>(i);
        }
        IMATH_INTERNAL_NAMESPACE::Box<T> b1 (-p, p);
        assert (b1.size () == p * T (2));
    }

    //
    // Size of non-empty, no-volume box.
    // 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                     = min;
        max[T::dimensions () - 1] = 1;

        IMATH_INTERNAL_NAMESPACE::Box<T> b (min, max);

        assert (b.size () == max);
    }
}

template <class T>