#include "libm.h"

#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex ctanl(long double complex z) {
  return ctan(z);
}
#else
long double complex ctanl(long double complex z) {
  z = ctanhl(CMPLXL(-cimagl(z), creall(z)));
  return CMPLXL(cimagl(z), -creall(z));
}
#endif