src/math/copysignl.c

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