diff options
Diffstat (limited to 'sysdeps/ieee754/float128/math-nan-payload-float128.h')
| -rw-r--r-- | sysdeps/ieee754/float128/math-nan-payload-float128.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sysdeps/ieee754/float128/math-nan-payload-float128.h b/sysdeps/ieee754/float128/math-nan-payload-float128.h new file mode 100644 index 0000000000..95ab953596 --- /dev/null +++ b/sysdeps/ieee754/float128/math-nan-payload-float128.h @@ -0,0 +1,34 @@ +/* NaN payload handling for _Float128. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <ieee754_float128.h> + +#define SET_NAN_PAYLOAD(flt, mant) \ + do \ + { \ + union ieee854_float128 u; \ + u.d = (flt); \ + u.ieee_nan.mantissa0 = 0; \ + u.ieee_nan.mantissa1 = 0; \ + u.ieee_nan.mantissa2 = (mant) >> 32; \ + u.ieee_nan.mantissa3 = (mant); \ + if ((u.ieee.mantissa0 | u.ieee.mantissa1 \ + | u.ieee.mantissa2 | u.ieee.mantissa3) != 0) \ + (flt) = u.d; \ + } \ + while (0) |