1995-02-18 01:27:10 +00:00
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/* Header file for constants used in floating point <-> decimal conversions.
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1999-01-11 20:13:43 +00:00
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Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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1997-02-10 03:19:57 +00:00
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This file is part of the GNU C Library.
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1995-02-18 01:27:10 +00:00
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1997-02-10 03:19:57 +00:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 04:58:11 +00:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1995-02-18 01:27:10 +00:00
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1997-02-10 03:19:57 +00:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 04:58:11 +00:00
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Lesser General Public License for more details.
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1995-02-18 01:27:10 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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1995-02-18 01:27:10 +00:00
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#ifndef _FPIOCONST_H
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#define _FPIOCONST_H
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#include <float.h>
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1998-12-28 14:28:07 +00:00
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#include <math.h>
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1995-02-18 01:27:10 +00:00
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#include "gmp.h"
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/* These values are used by __printf_fp, where they are noncritical (if the
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value is not large enough, it will just be slower); and by
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strtof/strtod/strtold, where it is critical (it's used for overflow
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detection).
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XXX These should be defined in <float.h>. For the time being, we have the
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IEEE754 values here. */
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1999-01-11 20:13:43 +00:00
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#ifndef __NO_LONG_DOUBLE_MATH
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# define LDBL_MAX_10_EXP_LOG 12 /* = floor(log_2(LDBL_MAX_10_EXP)) */
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#else
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# define LDBL_MAX_10_EXP_LOG 8 /* = floor(log_2(LDBL_MAX_10_EXP)) */
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#endif
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1995-02-18 01:27:10 +00:00
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#define DBL_MAX_10_EXP_LOG 8 /* = floor(log_2(DBL_MAX_10_EXP)) */
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#define FLT_MAX_10_EXP_LOG 5 /* = floor(log_2(FLT_MAX_10_EXP)) */
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Update.
1999-04-28 Ulrich Drepper <drepper@cygnus.com>
* argp/argp-ba.c (argp_program_bug_address): Don't initialize with 0.
* argp/argp-parse.c (_argp_hang): Likewise.
* argp/argp-pv.c (argp_program_version): Likewise.
* argp/argp-pvh.c (argp_program_version_hook): Likewise.
* inet/ether_hton.c (ether_hton, startp): Likewise.
* inet/ether_ntoh.c (ether_ntoh, startp): Likewise.
* inet/getnetgrent_r.c (setup, startp): Likewise.
* intl/loadmsgcat.c (_nl_msg_cat_cntr): Likewise.
* intl/localealias.c (string_space, string_space_act, string_space_max,
nmap, maxmap): Likewise.
* libio/iopopen.c (proc_file_chain): Likewise.
* libio/oldiopopen.c (old_proc_file_chain): Likewise.
* locale/lc-collate.c (__collate_table, __collate_extra,
__collate_element_hash, __collate_element_strings,
__collate_element_values): Likewise.
* malloc/mcheck.c (mcheck_used): Likewise.
* malloc/mtrace.c (added_atexit_handler): Likewise.
* malloc/set-freeres.c (already_called): Likewise.
* misc/getpass.c (getpass) [buf, bufsize]: Likewise.
* misc/syslog.c (LogStat, LogTag): Likewise.
* nss/XXX-lookup.c (DATABASE_NAME_SYMBOL): Likewise.
* nss/getXXbyYY_r.c (startp): Likewise.
* posix/getopt.c (optarg, __getopt_initialized): Likewise.
* posix/regex.c (init_syntax_once) [done]: Likewise.
(debug): Likewise.
* string/strfry.c (init): Likewise.
* sunrpc/svc_run.c (svc_top): Likewise.
* posix/euidaccess.c (have_ids): Likewise.
* sysdeps/unix/sysv/linux/poll.c (must_emulate): Likewise.
* sysdeps/unix/sysv/linux/ttyname.c (__ttyname, namelen): Likewise.
* time/getdate.c (getdate_err): Likewise.
* time/tzfile.c (transitions, type_idxs, types, zone_names, leaps):
Likewise.
* time/tzset.c (old_tz, is_initialized): Likewise.
* inet/getnameinfo.c (nrl_domainname): Rewrite to allow initialization
of static data with zero.
* signal/allocrtsig.c (init): Likewise.
* string/Makefile (routines): Add strchrnul.
* string/Versions [GLIBC_2.1.1]: Add strchrnul.
* string/string.c: Add strchrnul prototype.
* include/string.h: Add __strchrnul prototype.
* sysdeps/generic/strchrnul.c: New file.
* sysdeps/i386/strchrnul.S: New file.
* sysdeps/i386/bits/string.c: Add strchrnul optimization.
* sysdeps/i386/i486/bits/string.c: Likewise.
* argp/argp-help.c (argp_args_usage): Use __strchrnul.
* inet/ether_line.c (ether_line): Likewise.
* nscd/nscd_conf.c (nscd_parse_file): Likewise.
* nss/nsswitch.c (nss_parse_file): Likewise.
* posix/execvp.c (execvp): Likewise.
* posix/fnmatch.c (internal_fnmatch): Likewise.
* resolv/res_hconf.c (_res_hconv_init): Likewise.
* resolv/res_init.c (res_init): Likewise.
* stdlib/fmtmsg.c (init): Likewise.
* stdlib/getsubopt.c (getsubopt): Likewise.
* catgets/catgets.c (catopen): Only allocate one memory block.
(catclose): Only one free call necessary.
* catgets/open_catalog.c (__open_catalog): Simplify handling of
file descriptor.
* ctype/ctype-extn.c: Make __toascii_l and __isascii_l alias instead
of real functions. Simplify _tolower and _toupper.
* grp/initgroups.c (compat_call): Remove unnecessary use of pointer
variable.
* iconv/gconv.h (struct gconv_info): Change data element from pointer
to array of size 0.
* iconv/gconv_open.c (__gconv_open): Allocate structures accordingly.
* iconv/gconv_close.c (__gconv_close): Don't free data.
* iconv/gconv_conf.c (add_alias): Avoid searching in tree twice to
insert new alias.
* iconv/gconv_db.c (add_derivation): More efficient copying. Check
for error while inserting in tree.
* include/time.h: Pretty print.
* inet/ruserpass.c: Rewrite use of toktab to avoid string pointers
in table and lots of relocations.
* posix/regex.c (regerror): Rewrite use of re_error_msgid to avoid
string pointers in table and lots of relocations.
* intl/finddomain.c: Remove definition of strchr macro.
* io/ftw.c (nftw_arr, ftw_arr): Make const.
* locale/loadlocale.c (_nl_load_locale): Optimize string copying.
* locale/localeinfo.h (_nl_category_names): Change into an array with
fixed width char string elements.
* locale/setlocale.c (_nl_category_names): Likewise.
(_nl_current): Make global.
* locale/nl_langinfo.c (nldata): Removed. Use _nl_current now.
* malloc/Makefile (distribute): Add stackinfo.h.
* sysdeps/generic/stackinfo.h: New file.
* sysdeps/i386/stackinfo.h: New file.
* posix/execl.c: Use stackinfo.h in optimizing alloca use.
* posix/execle.c: Likewise.
* posix/execlp.c: Likewise.
* nis/nis_table.c (__create_ib_request): Always use realloc.
* posix/execvp.c (execute): Rename to script_execute and keep only
code to execute using shell.
(execvp): Call execv directly and only fall back on script_execute.
* resolv/inet_net_pton.c (inet_net_pton_ipv4): Remove digits define
and always use xdigits instead.
* resolv/res_init.c (res_init): Use rawmemchr instead of strchr
where appropriate.
* stdlib/fpioconst.h (__tens): New declaration.
(struct mp_power): Remove array, add arrayoff element.
* stdlib/fpioconst.c: Replace definitions of _ten_p* arrays by one
__tens array and add in _fpioconst_pow10 offsets into __tens.
* stdio-common/printf_fp.c: Rewrite to use new __tens array.
* stdlib/strtod.c: Likewise.
* stdlib/a64l.c (a64l_table): Avoid unnecessary elements.
* stdlib/exit.c: Rewrite to use __exit_funcs being as sign for end
of the list.
* stdlib/atexit.c (__exit_funcs): Don't initialize.
* stdlib/fmtmsg.c (keywords): Make name element fixed width array.
* sunrpc/clnt_perr.c: Rewrite clnt_sperrno and auth_errmsg to use
a single and an array with offsets.
* sunrpc/des_soft.c (partab): Make it const.
* sunrpc/key_call.c (trytimeout, tottimeout): Make const.
(__key_encryptsession_pk_LOCAL): Don't initialize with 0.
(__key_decryptsession_pk_LOCAL): Likewise.
(__key_gendes_LOCAL): Likewise.
(MESSENGER): Mark const.
(key_call_private_main): Don't initialize with 0.
(use_keyenvoy): Don't initialize with 0.
(key_call): Rewrite to reverse logic of use_doors variable.
* sunrpc/netname.c (OPSYS): Define as array, not pointer.
(startp): Don't initialize with zero.
* sunrpc/openchild.c (_openchild): Make first argument const.
* sunrpc/pmap_rmt.c (timeout): Mark const.
* sunrpc/xcrypt.c (hex): Likewise.
* sysdeps/unix/sysv/linux/getcwd.c: Rewrite to allow omitting
initialization of global variables.
* sysdeps/unix/sysv/linux/getpt.c: Likewise.
* sysdeps/unix/sysv/linux/if_index.c: Likewise.
* termios/tcgetsid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (x86_cap_flags): Change
fxsr to osfxsr.
* time/tzfile.c (__tzfile_read): Rewrite to allocate only one memory
block. Add function to free memory if wanted.
* time/tzset.c (tzset_internal): Pass extra argument to __tzfile_read.
* wcsmbs/wcsmbsload.c (to_wc, to_mb): Correct initializers.
* wcsmbs/wmemset.c: Little code optimization.
1999-04-28 23:13:52 +00:00
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/* The array with the number representation. */
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extern const mp_limb_t __tens[];
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1995-02-18 01:27:10 +00:00
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/* Table of powers of ten. This is used by __printf_fp and by
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strtof/strtod/strtold. */
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struct mp_power
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{
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Update.
1999-04-28 Ulrich Drepper <drepper@cygnus.com>
* argp/argp-ba.c (argp_program_bug_address): Don't initialize with 0.
* argp/argp-parse.c (_argp_hang): Likewise.
* argp/argp-pv.c (argp_program_version): Likewise.
* argp/argp-pvh.c (argp_program_version_hook): Likewise.
* inet/ether_hton.c (ether_hton, startp): Likewise.
* inet/ether_ntoh.c (ether_ntoh, startp): Likewise.
* inet/getnetgrent_r.c (setup, startp): Likewise.
* intl/loadmsgcat.c (_nl_msg_cat_cntr): Likewise.
* intl/localealias.c (string_space, string_space_act, string_space_max,
nmap, maxmap): Likewise.
* libio/iopopen.c (proc_file_chain): Likewise.
* libio/oldiopopen.c (old_proc_file_chain): Likewise.
* locale/lc-collate.c (__collate_table, __collate_extra,
__collate_element_hash, __collate_element_strings,
__collate_element_values): Likewise.
* malloc/mcheck.c (mcheck_used): Likewise.
* malloc/mtrace.c (added_atexit_handler): Likewise.
* malloc/set-freeres.c (already_called): Likewise.
* misc/getpass.c (getpass) [buf, bufsize]: Likewise.
* misc/syslog.c (LogStat, LogTag): Likewise.
* nss/XXX-lookup.c (DATABASE_NAME_SYMBOL): Likewise.
* nss/getXXbyYY_r.c (startp): Likewise.
* posix/getopt.c (optarg, __getopt_initialized): Likewise.
* posix/regex.c (init_syntax_once) [done]: Likewise.
(debug): Likewise.
* string/strfry.c (init): Likewise.
* sunrpc/svc_run.c (svc_top): Likewise.
* posix/euidaccess.c (have_ids): Likewise.
* sysdeps/unix/sysv/linux/poll.c (must_emulate): Likewise.
* sysdeps/unix/sysv/linux/ttyname.c (__ttyname, namelen): Likewise.
* time/getdate.c (getdate_err): Likewise.
* time/tzfile.c (transitions, type_idxs, types, zone_names, leaps):
Likewise.
* time/tzset.c (old_tz, is_initialized): Likewise.
* inet/getnameinfo.c (nrl_domainname): Rewrite to allow initialization
of static data with zero.
* signal/allocrtsig.c (init): Likewise.
* string/Makefile (routines): Add strchrnul.
* string/Versions [GLIBC_2.1.1]: Add strchrnul.
* string/string.c: Add strchrnul prototype.
* include/string.h: Add __strchrnul prototype.
* sysdeps/generic/strchrnul.c: New file.
* sysdeps/i386/strchrnul.S: New file.
* sysdeps/i386/bits/string.c: Add strchrnul optimization.
* sysdeps/i386/i486/bits/string.c: Likewise.
* argp/argp-help.c (argp_args_usage): Use __strchrnul.
* inet/ether_line.c (ether_line): Likewise.
* nscd/nscd_conf.c (nscd_parse_file): Likewise.
* nss/nsswitch.c (nss_parse_file): Likewise.
* posix/execvp.c (execvp): Likewise.
* posix/fnmatch.c (internal_fnmatch): Likewise.
* resolv/res_hconf.c (_res_hconv_init): Likewise.
* resolv/res_init.c (res_init): Likewise.
* stdlib/fmtmsg.c (init): Likewise.
* stdlib/getsubopt.c (getsubopt): Likewise.
* catgets/catgets.c (catopen): Only allocate one memory block.
(catclose): Only one free call necessary.
* catgets/open_catalog.c (__open_catalog): Simplify handling of
file descriptor.
* ctype/ctype-extn.c: Make __toascii_l and __isascii_l alias instead
of real functions. Simplify _tolower and _toupper.
* grp/initgroups.c (compat_call): Remove unnecessary use of pointer
variable.
* iconv/gconv.h (struct gconv_info): Change data element from pointer
to array of size 0.
* iconv/gconv_open.c (__gconv_open): Allocate structures accordingly.
* iconv/gconv_close.c (__gconv_close): Don't free data.
* iconv/gconv_conf.c (add_alias): Avoid searching in tree twice to
insert new alias.
* iconv/gconv_db.c (add_derivation): More efficient copying. Check
for error while inserting in tree.
* include/time.h: Pretty print.
* inet/ruserpass.c: Rewrite use of toktab to avoid string pointers
in table and lots of relocations.
* posix/regex.c (regerror): Rewrite use of re_error_msgid to avoid
string pointers in table and lots of relocations.
* intl/finddomain.c: Remove definition of strchr macro.
* io/ftw.c (nftw_arr, ftw_arr): Make const.
* locale/loadlocale.c (_nl_load_locale): Optimize string copying.
* locale/localeinfo.h (_nl_category_names): Change into an array with
fixed width char string elements.
* locale/setlocale.c (_nl_category_names): Likewise.
(_nl_current): Make global.
* locale/nl_langinfo.c (nldata): Removed. Use _nl_current now.
* malloc/Makefile (distribute): Add stackinfo.h.
* sysdeps/generic/stackinfo.h: New file.
* sysdeps/i386/stackinfo.h: New file.
* posix/execl.c: Use stackinfo.h in optimizing alloca use.
* posix/execle.c: Likewise.
* posix/execlp.c: Likewise.
* nis/nis_table.c (__create_ib_request): Always use realloc.
* posix/execvp.c (execute): Rename to script_execute and keep only
code to execute using shell.
(execvp): Call execv directly and only fall back on script_execute.
* resolv/inet_net_pton.c (inet_net_pton_ipv4): Remove digits define
and always use xdigits instead.
* resolv/res_init.c (res_init): Use rawmemchr instead of strchr
where appropriate.
* stdlib/fpioconst.h (__tens): New declaration.
(struct mp_power): Remove array, add arrayoff element.
* stdlib/fpioconst.c: Replace definitions of _ten_p* arrays by one
__tens array and add in _fpioconst_pow10 offsets into __tens.
* stdio-common/printf_fp.c: Rewrite to use new __tens array.
* stdlib/strtod.c: Likewise.
* stdlib/a64l.c (a64l_table): Avoid unnecessary elements.
* stdlib/exit.c: Rewrite to use __exit_funcs being as sign for end
of the list.
* stdlib/atexit.c (__exit_funcs): Don't initialize.
* stdlib/fmtmsg.c (keywords): Make name element fixed width array.
* sunrpc/clnt_perr.c: Rewrite clnt_sperrno and auth_errmsg to use
a single and an array with offsets.
* sunrpc/des_soft.c (partab): Make it const.
* sunrpc/key_call.c (trytimeout, tottimeout): Make const.
(__key_encryptsession_pk_LOCAL): Don't initialize with 0.
(__key_decryptsession_pk_LOCAL): Likewise.
(__key_gendes_LOCAL): Likewise.
(MESSENGER): Mark const.
(key_call_private_main): Don't initialize with 0.
(use_keyenvoy): Don't initialize with 0.
(key_call): Rewrite to reverse logic of use_doors variable.
* sunrpc/netname.c (OPSYS): Define as array, not pointer.
(startp): Don't initialize with zero.
* sunrpc/openchild.c (_openchild): Make first argument const.
* sunrpc/pmap_rmt.c (timeout): Mark const.
* sunrpc/xcrypt.c (hex): Likewise.
* sysdeps/unix/sysv/linux/getcwd.c: Rewrite to allow omitting
initialization of global variables.
* sysdeps/unix/sysv/linux/getpt.c: Likewise.
* sysdeps/unix/sysv/linux/if_index.c: Likewise.
* termios/tcgetsid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (x86_cap_flags): Change
fxsr to osfxsr.
* time/tzfile.c (__tzfile_read): Rewrite to allocate only one memory
block. Add function to free memory if wanted.
* time/tzset.c (tzset_internal): Pass extra argument to __tzfile_read.
* wcsmbs/wcsmbsload.c (to_wc, to_mb): Correct initializers.
* wcsmbs/wmemset.c: Little code optimization.
1999-04-28 23:13:52 +00:00
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size_t arrayoff; /* Offset in `__tens'. */
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1995-02-18 01:27:10 +00:00
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mp_size_t arraysize; /* Size of the array. */
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int p_expo; /* Exponent of the number 10^(2^i). */
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int m_expo; /* Exponent of the number 10^-(2^i-1). */
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};
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extern const struct mp_power _fpioconst_pow10[LDBL_MAX_10_EXP_LOG + 1];
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1996-02-19 23:14:44 +00:00
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/* The constants in the array `_fpioconst_pow10' have an offset. */
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#if BITS_PER_MP_LIMB == 32
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# define _FPIO_CONST_OFFSET 2
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#else
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# define _FPIO_CONST_OFFSET 1
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#endif
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1995-02-18 01:27:10 +00:00
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#endif /* fpioconst.h */
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