text: typedef struct {
      UTFLOAT mode;
  } ut_switch;
  
  int ut_switch_create(ut_switch **p);
  int ut_switch_destroy(ut_switch **p);
  int ut_switch_init(ut_data *ut, ut_switch *p);
  int ut_switch_compute(ut_data *ut, ut_switch *p, UTFLOAT *trig,
      UTFLOAT *in1, UTFLOAT *in2, UTFLOAT *out);
  