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#include "libm.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex cacosl(long double complex z)
{
return cacos(z);
}
#else
// FIXME
#define PI_2 1.57079632679489661923132169163975144L
long double complex cacosl(long double complex z)
{
z = casinl(z);
return cpackl(PI_2 - creall(z), -cimagl(z));
}
#endif
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