1 #include "libm.h"
2 
3 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
copysignl(long double x,long double y)4 long double copysignl(long double x, long double y) {
5     return copysign(x, y);
6 }
7 #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
copysignl(long double x,long double y)8 long double copysignl(long double x, long double y) {
9     union ldshape ux = {x}, uy = {y};
10     ux.i.se &= 0x7fff;
11     ux.i.se |= uy.i.se & 0x8000;
12     return ux.f;
13 }
14 #endif
15