1 /* NaN payload handling for _Float128. 2 Copyright (C) 2017-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <ieee754_float128.h> 20 21 #define SET_NAN_PAYLOAD(flt, mant) \ 22 do \ 23 { \ 24 union ieee854_float128 u; \ 25 u.d = (flt); \ 26 u.ieee_nan.mantissa0 = 0; \ 27 u.ieee_nan.mantissa1 = 0; \ 28 u.ieee_nan.mantissa2 = (mant) >> 32; \ 29 u.ieee_nan.mantissa3 = (mant); \ 30 if ((u.ieee.mantissa0 | u.ieee.mantissa1 \ 31 | u.ieee.mantissa2 | u.ieee.mantissa3) != 0) \ 32 (flt) = u.d; \ 33 } \ 34 while (0) 35