glibc/stdlib/strtod_nan_float.h

30 lines
1.1 KiB
C

/* Convert string for NaN payload to corresponding NaN. For float.
Copyright (C) 1997-2017 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 float
#define SET_MANTISSA(flt, mant) \
do \
{ \
union ieee754_float u; \
u.f = (flt); \
u.ieee_nan.mantissa = (mant); \
if (u.ieee.mantissa != 0) \
(flt) = u.f; \
} \
while (0)