|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|
|
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | NOTES | EXAMPLES | SEE ALSO | COLOPHON |
|
|
|
uselocale(3) Library Functions Manual uselocale(3)
uselocale - set/get the locale for the calling thread
Standard C library (libc, -lc)
#include <locale.h>
locale_t uselocale(locale_t newloc);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
uselocale():
Since glibc 2.10:
_XOPEN_SOURCE >= 700
Before glibc 2.10:
_GNU_SOURCE
The uselocale() function sets the current locale for the calling
thread, and returns the thread's previously current locale. After
a successful call to uselocale(), any calls by this thread to
functions that depend on the locale will operate as though the
locale has been set to newloc.
The newloc argument can have one of the following values:
A handle returned by a call to
newlocale(3) or duplocale(3) The calling thread's current
locale is set to the specified locale.
The special locale object handle
LC_GLOBAL_LOCALE The calling thread's current locale is set
to the global locale determined by setlocale(3).
(locale_t) 0
The calling thread's current locale is left unchanged (and
the current locale is returned as the function result).
On success, uselocale() returns the locale handle that was set by
the previous call to uselocale() in this thread, or
LC_GLOBAL_LOCALE if there was no such previous call. On error, it
returns (locale_t) 0, and sets errno to indicate the error.
EINVAL newloc does not refer to a valid locale object.
POSIX.1-2008.
glibc 2.3. POSIX.1-2008.
Unlike setlocale(3), uselocale() does not allow selective
replacement of individual locale categories. To employ a locale
that differs in only a few categories from the current locale, use
calls to duplocale(3) and newlocale(3) to obtain a locale object
equivalent to the current locale and modify the desired categories
in that object.
See newlocale(3) and duplocale(3).
locale(1), duplocale(3), freelocale(3), newlocale(3),
setlocale(3), locale(5), locale(7)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.15.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2025-08-11. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
[email protected]
Linux man-pages 6.15 2025-05-17 uselocale(3)
Pages that refer to this page: duplocale(3), isalpha(3), locale_t(3type), newlocale(3), toupper(3), locale(5), locale(7)
|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|