Function testComparators

src/ImathTest/testBox.cpp:363–439

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

    IMATH_INTERNAL_NAMESPACE::Rand32 rand (0);

    //
    // Compare empty.
    //
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b0;
        IMATH_INTERNAL_NAMESPACE::Box<T> b1;

        assert (b0 == b1);
        assert (!(b0 != b1));
    }

    //
    // Compare empty to non-empty.
    //
    {
        std::vector<T> perms;
        permutations (perms);

        for (unsigned int i = 0; i < perms.size (); i++)
        {
            for (unsigned int j = 0; j < perms.size (); j++)
            {
                T p0 = -perms[i];
                T p1 = perms[j];

                IMATH_INTERNAL_NAMESPACE::Box<T> b0;
                IMATH_INTERNAL_NAMESPACE::Box<T> b1 (p0, p1);
                assert (!(b0 == b1));
                assert (b0 != b1);
            }
        }
    }

    //
    // Compare two non-empty
    //
    {
        std::vector<T> perms;
        permutations (perms);

        for (unsigned int i = 0; i < perms.size (); i++)
        {
            for (unsigned int j = 0; j < perms.size (); j++)
            {
                T p0 = -perms[i];
                T p1 = perms[j];

                T p2 = -perms[j];
                T p3 = perms[i];

                IMATH_INTERNAL_NAMESPACE::Box<T> b0 (p0, p1);