#include "libm.h"

#ifdef LONG_DOUBLE_IS_BINARY64
long double copysignl(long double x, long double y)
{
	return copysign(x, y);
}
#elif defined(LONG_DOUBLE_IS_X87_EXTENDED) || defined(LONG_DOUBLE_IS_BINARY128)
long double copysignl(long double x, long double y)
{
	union ldshape ux = {x}, uy = {y};
	ux.i.se &= 0x7fff;
	ux.i.se |= uy.i.se & 0x8000;
	return ux.f;
}
#endif