Update.
[glibc.git] / misc / qefgcvt_r.c
blob040193b612d1de6bfeb4a62dc86987f07ba6ec19
1 /* Compatibility functions for floating point formatting, reentrant,
2 long double versions.
3 Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <float.h>
23 #define FLOAT_TYPE long double
24 #define FUNC_PREFIX q
25 #define FLOAT_FMT_FLAG "L"
26 #define FLOAT_NAME_EXT l
27 #if LDBL_MANT_DIG == 64
28 # define NDIGIT_MAX 21
29 #elif LDBL_MANT_DIG == 53
30 # define NDIGIT_MAX 17
31 #elif LDBL_MANT_DIG == 113
32 # define NDIGIT_MAX 36
33 #elif LDBL_MANT_DIG == 56
34 # define NDIGIT_MAX 18
35 #else
36 /* See IEEE 854 5.6, table 2 for this formula. Unfortunately we need a
37 compile time constant here, so we cannot use it. */
38 # error "NDIGIT_MAX must be precomputed"
39 # define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
40 #endif
42 #include "efgcvt_r.c"