VALUE MSPhysics::Music::is_valid(VALUE self, VALUE v_address) { return c_is_valid((Mix_Music*)Util::value_to_ll(v_address)) ? Qtrue : Qfalse; }
VALUE MSP::Music::rbf_is_valid(VALUE self, VALUE v_address) { return c_is_valid(reinterpret_cast<Mix_Music*>(Util::value_to_ull(v_address))) ? Qtrue : Qfalse; }