summaryrefslogtreecommitdiff
path: root/misc/qefgcvt_r.c
blob: 040193b612d1de6bfeb4a62dc86987f07ba6ec19 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/* Compatibility functions for floating point formatting, reentrant,
   long double versions.
   Copyright (C) 1996, 1997, 1999 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 Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  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"
#define FLOAT_NAME_EXT l
#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_r.c"