if(hy>=0x7f800000) return x+x;
if(hy>=0x7f800000) { x = x+x;	 if (FLT_EVAL_METHOD != 0)  asm ("" : "=m"(x) : "m"(x)); return x; }
	float __nexttowardf(float x, long double y)#else	float __nexttowardf(x,y)	float x;	long double y;#endif{	int32_t hx,hy,ix,iy;	u_int32_t ly;	GET_FLOAT_WORD(hx,x);	EXTRACT_WORDS(hy,ly,y);	ix = hx&0x7fffffff;		/* |x| */	iy = hy&0x7fffffff;		/* |y| */	if((ix>0x7f800000) ||				   /* x is nan */	   ((iy>=0x7ff00000)&&((iy-0x7ff00000)|ly)!=0))    /* y is nan */	   return x+y;	if((long double) x==y) return y;	/* x=y, return y */	if(ix==0) {				/* x == 0 */	    float x2;	    SET_FLOAT_WORD(x,(u_int32_t)(hy&0x80000000)|1);/* return +-minsub*/	    x2 = x*x;	    if(x2==x) return x2; else return x; /* raise underflow flag */	}	if(hx>=0) {				/* x > 0 */	    if(hy<0||(ix>>23)>(iy>>20)-0x380	       || ((ix>>23)==(iy>>20)-0x380		   && (ix&0x7fffff)>(((hy<<3)|(ly>>29))&0x7fffff)))	/* x > y, x -= ulp */		hx -= 1;	    else				/* x < y, x += ulp */		hx += 1;	} else {				/* x < 0 */	    if(hy>=0||(ix>>23)>(iy>>20)-0x380	       || ((ix>>23)==(iy>>20)-0x380		   && (ix&0x7fffff)>(((hy<<3)|(ly>>29))&0x7fffff)))	/* x < y, x -= ulp */		hx -= 1;	    else				/* x > y, x += ulp */		hx += 1;	}	hy = hx&0x7f800000;	if(hy>=0x7f800000) return x+x;	/* overflow  */	if(hy<0x00800000) {		/* underflow */	    float x2 = x*x;	    if(x2!=x) {		/* raise underflow flag */		SET_FLOAT_WORD(x2,hx);		return x2;	    }	}	SET_FLOAT_WORD(x,hx);	return x;}