glibc/sysdeps/ieee754/ldbl-96/strtold_l.c

45 lines
1.6 KiB
C

/* Copyright (C) 1999-2013 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 <math.h>
/* The actual implementation for all floating point sizes is in strtod.c.
These macros tell it to produce the `long double' version, `strtold'. */
#define FLOAT long double
#define FLT LDBL
#ifdef USE_WIDE_CHAR
# define STRTOF wcstold_l
# define __STRTOF __wcstold_l
#else
# define STRTOF strtold_l
# define __STRTOF __strtold_l
#endif
#define MPN2FLOAT __mpn_construct_long_double
#define FLOAT_HUGE_VAL HUGE_VALL
#define SET_MANTISSA(flt, mant) \
do { union ieee854_long_double u; \
u.d = (flt); \
if ((mant & 0x7fffffffffffffffULL) == 0) \
mant = 0x4000000000000000ULL; \
u.ieee.mantissa0 = (((mant) >> 32) & 0x7fffffff) | 0x80000000; \
u.ieee.mantissa1 = (mant) & 0xffffffff; \
(flt) = u.d; \
} while (0)
#include <stdlib/strtod_l.c>