/* s_isnanl.c -- long double 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. * ==================================================== */ #if defined(LIBM_SCCS) && !defined(lint) static char rcsid[] = "NetBSD: "; #endif /* * isnanq(x) returns 1 is x is nan, else 0; * no branching! */ #include "quadmath-imp.h" int isnanq(__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); } |