diff options
Diffstat (limited to 'stdlib/strtod_nan_double.h')
| -rw-r--r-- | stdlib/strtod_nan_double.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/stdlib/strtod_nan_double.h b/stdlib/strtod_nan_double.h new file mode 100644 index 0000000000..f5bdb03e90 --- /dev/null +++ b/stdlib/strtod_nan_double.h @@ -0,0 +1,30 @@ +/* Convert string for NaN payload to corresponding NaN. For double. + Copyright (C) 1997-2015 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/>. */ + +#define FLOAT double +#define SET_MANTISSA(flt, mant) \ + do \ + { \ + union ieee754_double u; \ + u.d = (flt); \ + u.ieee_nan.mantissa0 = (mant) >> 32; \ + u.ieee_nan.mantissa1 = (mant); \ + if ((u.ieee.mantissa0 | u.ieee.mantissa1) != 0) \ + (flt) = u.d; \ + } \ + while (0) |