1#include "libm.h" 2 3#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 4long double complex cacosl(long double complex z) 5{ 6 return cacos(z); 7} 8#else 9// FIXME 10#define PI_2 1.57079632679489661923132169163975144L 11long double complex cacosl(long double complex z) 12{ 13 z = casinl(z); 14 return CMPLXL(PI_2 - creall(z), -cimagl(z)); 15} 16#endif 17