mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 05:50:14 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/* Compatibility functions for floating point formatting, long double version.
|
|
Copyright (C) 1996, 1997, 1999, 2000 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <float.h>
|
|
|
|
#define FLOAT_TYPE long double
|
|
#define FUNC_PREFIX q
|
|
#define FLOAT_FMT_FLAG "L"
|
|
/* Actually we have to write (LDBL_DIG + log10 (LDBL_MAX_10_EXP)) but
|
|
we don't have log10 available in the preprocessor. Since we cannot
|
|
assume anything on the used `long double' format be generous. */
|
|
#define MAXDIG (NDIGIT_MAX + 12)
|
|
#define FCVT_MAXDIG (LDBL_MAX_10_EXP + MAXDIG)
|
|
#if LDBL_MANT_DIG == 64
|
|
# define NDIGIT_MAX 21
|
|
#elif LDBL_MANT_DIG == 53
|
|
# define NDIGIT_MAX 17
|
|
#elif LDBL_MANT_DIG == 113
|
|
# define NDIGIT_MAX 36
|
|
#elif LDBL_MANT_DIG == 56
|
|
# define NDIGIT_MAX 18
|
|
#else
|
|
/* See IEEE 854 5.6, table 2 for this formula. Unfortunately we need a
|
|
compile time constant here, so we cannot use it. */
|
|
# error "NDIGIT_MAX must be precomputed"
|
|
# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
|
|
#endif
|
|
|
|
#include "efgcvt.c"
|