Improve the commentary to aid future developers who will stumble
upon this novel, yet not always perfect, mechanism to support
alternative formats for long double.
Likewise, rename __LONG_DOUBLE_USES_FLOAT128 to
__LDOUBLE_REDIRECTS_TO_FLOAT128_ABI now that development work
has settled down. The command used was
git grep -l __LONG_DOUBLE_USES_FLOAT128 ':!./ChangeLog*' | \
xargs sed -i 's/__LONG_DOUBLE_USES_FLOAT128/__LDOUBLE_REDIRECTS_TO_FLOAT128_ABI/g'
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
All functions that have a format string, which can consume a long double
argument, must have one version for each long double format supported on
a platform. On powerpc64le, these functions currently have two versions
(i.e.: long double with the same format as double, and long double with
IBM Extended Precision format). Support for a third long double format
option (i.e. long double with IEEE long double format) is being prepared
and all the aforementioned functions now have a third version (not yet
exported on the master branch, but the code is in).
For these functions to get selected (during build time), references to
them in user programs (or dependent libraries) must get redirected to
the aforementioned new versions of the functions. This patch installs
the header magic required to perform such redirections.
Notice, however, that since the redirections only happen when
__LONG_DOUBLE_USES_FLOAT128 is set to 1, and no platform (including
powerpc64le) currently does it, no redirections actually happen.
Redirections and the exporting of the new functions will happen at the
same time (when powerpc64le adds ldbl-128ibm-compat to their Implies.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Reviewed-by: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
On platforms where long double may have the same format as double
(-mlong-double-64), error and error_at_line do not take that into
account and might produce wrong output if a long double conversion is
requested by the format string ('%Lf'). This patch adds compatibility
functions for this situation and redirects calls via header magic.
Tested for powerpc, powerpc64 and powerpc64le.
2003-08-30 Ulrich Drepper <drepper@redhat.com>
* misc/error.c (error): Disable cancellation handling around the
actual output. The message should in any case be printed.
(error_at_line): Likewise.
* misc/error.h: Protect parameter names with leading __.
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.
* intl/Makefile (copysrc): Add missing > in sed cmd.
Sat Mar 23 17:52:49 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* Makeconfig: Rename Makefile variable nlsdir to i18ndir and
change value to $(datadir)/i18n. `nls' is not an appropriate
name.
* Makefile (subdirs): Add new subdir wctype.
* ctype/ctype-info.c: Add new global variable __ctype_names
and initialize from _nl_C_LC_CTYPE.
* ctype/ctype.h: In P1003.3b/D11 `alnum' is a separate character
class. Use bit 11.
[_ISbit]: Protect definition of bitmasks because they are also
used in wctype.h.
* libio/genops.c (_IO_sputbackc, _IO_sungetc): Clear EOF flag
after successfully pushing back a character.
Fundamental changes in locale implementation. Almost nothing
from the old code is used anymore.
* locale/charmap.c, locale/collate.c, locale/config.h,
locale/ctypedump.c, locale/hash.h, locale/keyword.gperf,
locale/keyword.h, locale/loadlocale.c, locale/locale-ctype.c,
locale/locale.c locale/localeconv.c, locale/localedef.c,
locale/localedef.h, locale/locfile-hash.c, locale/locfile-lex.c,
locale/locfile-parse.c, locale/messages.c, locale/monetary.c,
locale/numeric.c, locale/setlocale.c, locale/token.h,
locale/xmalloc.c: Removed.
* locale/Makefile: Update for new locale implementation with
program source code distributed in subdir.
* locale/categories.def, locale/iso-4217.def: Updated file
for new locale implementation.
* locale/langinfo.h: Updated for new locale implementation.
(ERA_D_T_FMT, ERA_T_FMT): New official values according to
P1003.2b/D11.
(_NL_COLLATE_NRULES, _NL_COLLATE_RULES, _NL_COLLATE_HASH_SIZE,
_NL_COLLATE_HASH_LAYERS, _NL_COLLATE_TABLE_EB,
_NL_COLLATE_TABLE_EL, _NL_COLLATE_UNDEFINED, _NL_COLLATE_EXTRA_EB,
_NL_COLLATE_EXTRA_EL, _NL_CTYPE_NAMES_EB, _NL_CTYPE_NAMES_EL,
_NL_CTYPE_HASH_SIZE, _NL_CTYPE_HASH_LAYERS, _NL_CTYPE_CLASS_NAMES,
_NL_CTYPE_MAP_NAMES, _NL_CTYPE_WIDTH): New internal values for
extended LC_CTYPE and LC_COLLATE implementation.
* locale/simple-hash.c, locale/simple-hash.h, locale/xmalloc.c,
locale/xstrdup.c: Helper functions for locale related programs.
* locale/C-collate.c, locale/C-ctype.c,
locale/C-messages.c, locale/C-monetary.c,
locale/C-numeric.c, locale/C-time.c,
locale/lc-collate.c, locale/lc-ctype.c,
locale/lc-messages.c, locale/lc-monetary.c,
locale/lc-numeric.c, locale/lc-time.c: New implementation of locale
functions, and new generated "C" locale data.
* locale/loadlocale.c: Now handles word fields in locale binary
automatically by changing the endianess if necessary.
* locale/localeinfo.h (LIMAGIC): Changed magic number because
of incompatible changes.
(locale_data): Changed definition to allow word as a value type.
(coll_sort_rule): Values for collation sorting mode.
(_NL_CURRENT_WORD): New macro to access word value of locale entry.
(__collate_table, __collate_extra): Declare new global variables
for collation tables.
* locale/programs/charmap-kw.gperf, locale/programs/charmap-kw.h,
locale/programs/charmap.c, locale/programs/charset.c,
locale/programs/charset.h, locale/programs/config.h,
locale/programs/ctypedump.c, locale/programs/ld-collate.c,
locale/programs/ld-ctype.c, locale/programs/ld-messages.c,
locale/programs/ld-monetary.c, locale/programs/ld-numeric.c,
locale/programs/ld-time.c, locale/programs/linereader.c,
locale/programs/linereader.h, locale/programs/locale.c,
locale/programs/localedef.c, locale/programs/locales.h,
locale/programs/locfile-kw.gperf, locale/programs/locfile-kw.h,
locale/programs/locfile-token.h, locale/programs/locfile.c,
locale/programs/locfile.h, locale/programs/stringtrans.c,
locale/programs/stringtrans.h: Implementation of locale related
programs.
* locale/weight.h: Functions to access collation tables.
* posix/unistd.h: Define _POSIX2_LOCALEDEF.
* stdio-common/printf_fp.c: Fix bug with printing certain numbers
< 10^-1. Reported by Bill Metzenthen.
* stdio-common/tfformat.c: Add new test for above bug.
* string/strcoll.c, string/strxfrm.c: Real implementation of
string collation according to ISO C.
* wctype/Makefile, wctype/cname-lookup.h, wctype/iswctype.c,
wctype/test_wctype.c, wctype/towctrans.c, wctype/wcfuncs.c,
wctype/wctrans.c, wctype/wctype.c, wctype/wctype.h: New files.
Implementation of wide character classes and mapping.
