1/* isnanq.c -- __float128 version of s_isnan.c.
2 * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
3 */
4
5/*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16#include "quadmath-imp.h"
17
18int
19isnanq (const __float128 x)
20{
21 int64_t hx,lx;
22 GET_FLT128_WORDS64(hx,lx,x);
23 hx &= 0x7fffffffffffffffLL;
24 hx |= (uint64_t)(lx|(-lx))>>63;
25 hx = 0x7fff000000000000LL - hx;
26 return (int)((uint64_t)hx>>63);
27}
28