third_party/ulib/musl/src/math/__signbitl.c

#include "libm.h"

#if (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
int __signbitl(long double x) {
    union ldshape u = {x};
    return u.i.se >> 15;
}
#elif LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
int __signbitl(long double x) {
    return __signbit(x);
}
#endif