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9761bf4d | 1 | /* NaN payload handling for _Float128. |
04277e02 | 2 | Copyright (C) 2017-2019 Free Software Foundation, Inc. |
45f39d45 PM |
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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
9761bf4d FW |
19 | #include <ieee754_float128.h> |
20 | ||
21 | #define SET_NAN_PAYLOAD(flt, mant) \ | |
45f39d45 PM |
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) |