| /* isnanq.c -- __float128 version of s_isnan.c. |
| * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz. |
| */ |
| |
| /* |
| * ==================================================== |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Developed at SunPro, a Sun Microsystems, Inc. business. |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| #include "quadmath-imp.h" |
| |
| int |
| isnanq (const __float128 x) |
| { |
| int64_t hx,lx; |
| GET_FLT128_WORDS64(hx,lx,x); |
| hx &= 0x7fffffffffffffffLL; |
| hx |= (uint64_t)(lx|(-lx))>>63; |
| hx = 0x7fff000000000000LL - hx; |
| return (int)((uint64_t)hx>>63); |
| } |