localeconv(3) [opendarwin man page]
LOCALECONV(3) Linux Programmer's Manual LOCALECONV(3) NAME
localeconv - get numeric formatting information SYNOPSIS
#include <locale.h> struct lconv *localeconv(void); DESCRIPTION
The localeconv() function returns a pointer to a struct lconv for the current locale. This structure is shown in locale(7), and contains all values associated with the locale categories LC_NUMERIC and LC_MONETARY. Programs may also use the functions printf(3) and strfmon(3), which behave according to the actual locale in use. RETURN VALUE
The localeconv() function returns a pointer to a filled in struct lconv. This structure may be (in glibc, is) statically allocated, and may be overwritten by subsequent calls. According to POSIX, the caller should not modify the contents of this structure. The localeconv() function always succeeds. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +-------------+---------------+----------------------------------+ |Interface | Attribute | Value | +-------------+---------------+----------------------------------+ |localeconv() | Thread safety | MT-Unsafe race:localeconv locale | +-------------+---------------+----------------------------------+ CONFORMING TO
C89, C99. BUGS
The printf(3) family of functions may or may not honor the current locale. SEE ALSO
locale(1), localedef(1), isalpha(3), nl_langinfo(3), setlocale(3), strcoll(3), strftime(3), locale(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2015-03-02 LOCALECONV(3)
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SETLOCALE(3) Linux Programmer's Manual SETLOCALE(3) NAME
setlocale - set the current locale SYNOPSIS
#include <locale.h> char *setlocale(int category, const char *locale); DESCRIPTION
The setlocale() function is used to set or query the program's current locale. If locale is not NULL, the program's current locale is modified according to the arguments. The argument category determines which parts of the program's current locale should be modified. Category Governs LC_ALL All of the locale LC_ADDRESS Formatting of addresses and geography-related items (*) LC_COLLATE String collation LC_CTYPE Character classification LC_IDENTIFICATION Metadata describing the locale (*) LC_MEASUREMENT Settings related to measurements (metric versus US customary) (*) LC_MESSAGES Localizable natural-language messages LC_MONETARY Formatting of monetary values LC_NAME Formatting of salutations for persons (*) LC_NUMERIC Formatting of nonmonetary numeric values LC_PAPER Settings related to the standard paper size (*) LC_TELEPHONE Formats to be used with telephone services (*) LC_TIME Formatting of date and time values The categories marked with an asterisk in the above table are GNU extensions. For further information on these locale categories, see locale(7). The argument locale is a pointer to a character string containing the required setting of category. Such a string is either a well-known constant like "C" or "da_DK" (see below), or an opaque string that was returned by another call of setlocale(). If locale is an empty string, "", each part of the locale that should be modified is set according to the environment variables. The details are implementation-dependent. For glibc, first (regardless of category), the environment variable LC_ALL is inspected, next the environment variable with the same name as the category (see the table above), and finally the environment variable LANG. The first exist- ing environment variable is used. If its value is not a valid locale specification, the locale is unchanged, and setlocale() returns NULL. The locale "C" or "POSIX" is a portable locale; it exists on all conforming systems. A locale name is typically of the form language[_territory][.codeset][@modifier], where language is an ISO 639 language code, territory is an ISO 3166 country code, and codeset is a character set or encoding identifier like ISO-8859-1 or UTF-8. For a list of all supported locales, try "locale -a" (see locale(1)). If locale is NULL, the current locale is only queried, not modified. On startup of the main program, the portable "C" locale is selected as default. A program may be made portable to all locales by calling: setlocale(LC_ALL, ""); after program initialization, by using the values returned from a localeconv(3) call for locale-dependent information, by using the multi- byte and wide character functions for text processing if MB_CUR_MAX > 1, and by using strcoll(3), wcscoll(3) or strxfrm(3), wcsxfrm(3) to compare strings. RETURN VALUE
A successful call to setlocale() returns an opaque string that corresponds to the locale set. This string may be allocated in static stor- age. The string returned is such that a subsequent call with that string and its associated category will restore that part of the process's locale. The return value is NULL if the request cannot be honored. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +------------+---------------+----------------------------+ |Interface | Attribute | Value | +------------+---------------+----------------------------+ |setlocale() | Thread safety | MT-Unsafe const:locale env | +------------+---------------+----------------------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99. The C standards specify only the categories LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, and LC_TIME. POSIX.1 adds LC_MESSAGES. The remaining categories are GNU extensions. SEE ALSO
locale(1), localedef(1), isalpha(3), localeconv(3), nl_langinfo(3), rpmatch(3), strcoll(3), strftime(3), charsets(7), locale(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU 2017-09-15 SETLOCALE(3)