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af85385f31
<locale.h> is specified to define locale_t in POSIX.1-2008, and so are all of the headers that define functions that take locale_t arguments. Under _GNU_SOURCE, the additional headers that define such functions have also always defined locale_t. Therefore, there is no need to use __locale_t in public function prototypes, nor in any internal code. * ctype/ctype-c99_l.c, ctype/ctype.h, ctype/ctype_l.c * include/monetary.h, include/stdlib.h, include/time.h * include/wchar.h, locale/duplocale.c, locale/freelocale.c * locale/global-locale.c, locale/langinfo.h, locale/locale.h * locale/localeinfo.h, locale/newlocale.c * locale/nl_langinfo_l.c, locale/uselocale.c * localedata/bug-usesetlocale.c, localedata/tst-xlocale2.c * stdio-common/vfscanf.c, stdlib/monetary.h, stdlib/stdlib.h * stdlib/strfmon_l.c, stdlib/strtod_l.c, stdlib/strtof_l.c * stdlib/strtol.c, stdlib/strtol_l.c, stdlib/strtold_l.c * stdlib/strtoll_l.c, stdlib/strtoul_l.c, stdlib/strtoull_l.c * string/strcasecmp.c, string/strcoll_l.c, string/string.h * string/strings.h, string/strncase.c, string/strxfrm_l.c * sysdeps/ieee754/float128/strtof128_l.c * sysdeps/ieee754/float128/wcstof128.c * sysdeps/ieee754/float128/wcstof128_l.c * sysdeps/ieee754/ldbl-128ibm/strtold_l.c * sysdeps/ieee754/ldbl-64-128/strtold_l.c * sysdeps/ieee754/ldbl-opt/nldbl-compat.c * sysdeps/ieee754/ldbl-opt/nldbl-strfmon_l.c * sysdeps/ieee754/ldbl-opt/nldbl-strtold_l.c * sysdeps/ieee754/ldbl-opt/nldbl-wcstold_l.c * sysdeps/powerpc/powerpc32/power7/strcasecmp.S * sysdeps/powerpc/powerpc64/power7/strcasecmp.S * sysdeps/x86_64/strcasecmp_l-nonascii.c * sysdeps/x86_64/strncase_l-nonascii.c, time/strftime_l.c * time/strptime_l.c, time/time.h, wcsmbs/mbsrtowcs_l.c * wcsmbs/wchar.h, wcsmbs/wcscasecmp.c, wcsmbs/wcsncase.c * wcsmbs/wcstod.c, wcsmbs/wcstod_l.c, wcsmbs/wcstof.c * wcsmbs/wcstof_l.c, wcsmbs/wcstol_l.c, wcsmbs/wcstold.c * wcsmbs/wcstold_l.c, wcsmbs/wcstoll_l.c, wcsmbs/wcstoul_l.c * wcsmbs/wcstoull_l.c, wctype/iswctype_l.c * wctype/towctrans_l.c, wctype/wcfuncs_l.c * wctype/wctrans_l.c, wctype/wctype.h, wctype/wctype_l.c: Change all uses of __locale_t to locale_t.
76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/* uselocale -- fetch and set the current per-thread locale
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Copyright (C) 2002-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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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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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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Lesser General Public License for more details.
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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, see
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<http://www.gnu.org/licenses/>. */
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#include <locale.h>
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#include "localeinfo.h"
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#include <ctype.h>
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/* Switch the current thread's locale to DATASET.
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If DATASET is null, instead just return the current setting.
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The special value LC_GLOBAL_LOCALE is the initial setting
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for all threads, and means the thread uses the global
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setting controlled by `setlocale'. */
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locale_t
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__uselocale (locale_t newloc)
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{
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locale_t oldloc = _NL_CURRENT_LOCALE;
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if (newloc != NULL)
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{
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const locale_t locobj
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= newloc == LC_GLOBAL_LOCALE ? &_nl_global_locale : newloc;
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__libc_tsd_set (locale_t, LOCALE, locobj);
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#ifdef NL_CURRENT_INDIRECT
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/* Now we must update all the per-category thread-local variables to
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point into the new current locale for this thread. The magic
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symbols _nl_current_LC_FOO_used are defined to meaningless values
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if _nl_current_LC_FOO was linked in. By using weak references to
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both symbols and testing the address of _nl_current_LC_FOO_used,
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we can avoid accessing the _nl_current_LC_FOO thread-local
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variable at all when no code referring to it was linked in. We
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need the special bogus symbol because while TLS symbols can be
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weak, there is no reasonable way to test for the default-zero
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value as with a heap symbol (taking the address would just use
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some bogus offset from our thread pointer). */
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# define DEFINE_CATEGORY(category, category_name, items, a) \
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{ \
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extern char _nl_current_##category##_used; \
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weak_extern (_nl_current_##category##_used) \
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weak_extern (_nl_current_##category) \
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if (&_nl_current_##category##_used != 0) \
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_nl_current_##category = &locobj->__locales[category]; \
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}
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# include "categories.def"
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# undef DEFINE_CATEGORY
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#endif
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/* Update the special tsd cache of some locale data. */
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__libc_tsd_set (const uint16_t *, CTYPE_B, (void *) locobj->__ctype_b);
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__libc_tsd_set (const int32_t *, CTYPE_TOLOWER,
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(void *) locobj->__ctype_tolower);
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__libc_tsd_set (const int32_t *, CTYPE_TOUPPER,
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(void *) locobj->__ctype_toupper);
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}
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return oldloc == &_nl_global_locale ? LC_GLOBAL_LOCALE : oldloc;
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}
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libc_hidden_def (__uselocale)
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weak_alias (__uselocale, uselocale)
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