Blame misc/qefgcvt_r.c

Packit 6c4009
/* Compatibility functions for floating point formatting, reentrant,
Packit 6c4009
   long double versions.
Packit 6c4009
   Copyright (C) 1996-2018 Free Software Foundation, Inc.
Packit 6c4009
   This file is part of the GNU C Library.
Packit 6c4009
Packit 6c4009
   The GNU C Library is free software; you can redistribute it and/or
Packit 6c4009
   modify it under the terms of the GNU Lesser General Public
Packit 6c4009
   License as published by the Free Software Foundation; either
Packit 6c4009
   version 2.1 of the License, or (at your option) any later version.
Packit 6c4009
Packit 6c4009
   The GNU C Library is distributed in the hope that it will be useful,
Packit 6c4009
   but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6c4009
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit 6c4009
   Lesser General Public License for more details.
Packit 6c4009
Packit 6c4009
   You should have received a copy of the GNU Lesser General Public
Packit 6c4009
   License along with the GNU C Library; if not, see
Packit 6c4009
   <http://www.gnu.org/licenses/>.  */
Packit 6c4009
Packit 6c4009
#include <float.h>
Packit 6c4009
Packit 6c4009
#define FLOAT_TYPE long double
Packit 6c4009
#define FUNC_PREFIX q
Packit 6c4009
#define FLOAT_FMT_FLAG "L"
Packit 6c4009
#define FLOAT_NAME_EXT l
Packit 6c4009
#define FLOAT_MIN_10_EXP LDBL_MIN_10_EXP
Packit 6c4009
#if LDBL_MANT_DIG == 64
Packit 6c4009
# define NDIGIT_MAX 21
Packit 6c4009
#elif LDBL_MANT_DIG == 53
Packit 6c4009
# define NDIGIT_MAX 17
Packit 6c4009
#elif LDBL_MANT_DIG == 113
Packit 6c4009
# define NDIGIT_MAX 36
Packit 6c4009
#elif LDBL_MANT_DIG == 106
Packit 6c4009
# define NDIGIT_MAX 34
Packit 6c4009
#elif LDBL_MANT_DIG == 56
Packit 6c4009
# define NDIGIT_MAX 18
Packit 6c4009
#else
Packit 6c4009
/* See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
Packit 6c4009
   compile time constant here, so we cannot use it.  */
Packit 6c4009
# error "NDIGIT_MAX must be precomputed"
Packit 6c4009
# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
Packit 6c4009
#endif
Packit 6c4009
#if LDBL_MIN_10_EXP == -37
Packit 6c4009
# define FLOAT_MIN_10_NORM	1.0e-37L
Packit 6c4009
#elif LDBL_MIN_10_EXP == -291
Packit 6c4009
# define FLOAT_MIN_10_NORM	1.0e-291L
Packit 6c4009
#elif LDBL_MIN_10_EXP == -307
Packit 6c4009
# define FLOAT_MIN_10_NORM	1.0e-307L
Packit 6c4009
#elif LDBL_MIN_10_EXP == -4931
Packit 6c4009
# define FLOAT_MIN_10_NORM	1.0e-4931L
Packit 6c4009
#else
Packit 6c4009
/* libc can't depend on libm.  */
Packit 6c4009
# error "FLOAT_MIN_10_NORM must be precomputed"
Packit 6c4009
# define FLOAT_MIN_10_NORM	exp10l (LDBL_MIN_10_EXP)
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
#include "efgcvt_r.c"