3 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4 long double copysignl(long double x
, long double y
)
8 #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
9 long double copysignl(long double x
, long double y
)
11 union ldshape ux
= {x
}, uy
= {y
};
13 ux
.i
.se
|= uy
.i
.se
& 0x8000;