StaticAssert

    template <bool>
    struct StaticCheck { StaticCheck(...);};

    template <>
    struct StaticCheck<false> {};

#define STATIC_ASSERT(expr, msg)                                                    /
    {                                                                               /
        class ERORR_##msg {};                                                       /
        (void)sizeof((StaticCheck<expr>)StaticCheck<expr>(ERROR_##msg));            /
    }