mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
49e522bfb8
* locale/loadlocale.c (_nl_load_locale): If LOCALE/LC_* is a directory, open LOCALE/LC_*/SYS_LC_* instead. * stdio/fpioconst.c, stdio/fpioconst.h, stdio/gmp-impl.h, stdio/gmp.h, stdio/longlong.h, stdio/mp_clz_tab.c, stdio/gen-mpn-copy: Files moved to stdlib. * stdio/Makefile: All mpn stuff moved to stdlib/Makefile. * stdio/printf_fp.c: Use ../stdlib to find fpioconst.h and gmp headers. * stdlib/strtod.c: Don't use ../stdio to find fpioconst.h and gmp headers.
53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/* Header file for constants used in floating point <-> decimal conversions.
|
|
Copyright (C) 1995 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#ifndef _FPIOCONST_H
|
|
#define _FPIOCONST_H
|
|
|
|
#include <float.h>
|
|
#include "gmp.h"
|
|
|
|
|
|
/* These values are used by __printf_fp, where they are noncritical (if the
|
|
value is not large enough, it will just be slower); and by
|
|
strtof/strtod/strtold, where it is critical (it's used for overflow
|
|
detection).
|
|
|
|
XXX These should be defined in <float.h>. For the time being, we have the
|
|
IEEE754 values here. */
|
|
|
|
#define LDBL_MAX_10_EXP_LOG 12 /* = floor(log_2(LDBL_MAX_10_EXP)) */
|
|
#define DBL_MAX_10_EXP_LOG 8 /* = floor(log_2(DBL_MAX_10_EXP)) */
|
|
#define FLT_MAX_10_EXP_LOG 5 /* = floor(log_2(FLT_MAX_10_EXP)) */
|
|
|
|
|
|
/* Table of powers of ten. This is used by __printf_fp and by
|
|
strtof/strtod/strtold. */
|
|
struct mp_power
|
|
{
|
|
const mp_limb *array; /* The array with the number representation. */
|
|
mp_size_t arraysize; /* Size of the array. */
|
|
int p_expo; /* Exponent of the number 10^(2^i). */
|
|
int m_expo; /* Exponent of the number 10^-(2^i-1). */
|
|
};
|
|
extern const struct mp_power _fpioconst_pow10[LDBL_MAX_10_EXP_LOG + 1];
|
|
|
|
|
|
#endif /* fpioconst.h */
|