langinfo.h(0p) — Linux manual page


langinfo.h(0P)          POSIX Programmer's Manual         langinfo.h(0P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME         top

       langinfo.h — language information constants

SYNOPSIS         top

       #include <langinfo.h>

DESCRIPTION         top

       The <langinfo.h> header shall define the symbolic constants used
       to identify items of langinfo data (see nl_langinfo()).

       The <langinfo.h> header shall define the locale_t type as
       described in <locale.h>.

       The <langinfo.h> header shall define the nl_item type as
       described in <nl_types.h>.

       The <langinfo.h> header shall define the following symbolic
       constants with type nl_item.  The entries under Category indicate
       in which setlocale() category each item is defined.
│  Constant  Category  Meaning                           │
│ CODESET    │LC_CTYPE   │Codeset name.                                              │
│ D_T_FMT    │LC_TIME    │String for formatting date and time.                       │
│ D_FMT      │LC_TIME    │Date format string.                                        │
│ T_FMT      │LC_TIME    │Time format string.                                        │
│ T_FMT_AMPM │LC_TIME    │a.m. or p.m. time format string.                           │
│ AM_STR     │LC_TIME    │Ante-meridiem affix.                                       │
│ PM_STR     │LC_TIME    │Post-meridiem affix.                                       │
│ DAY_1      │LC_TIME    │Name of the first day of the week (for example, Sunday).   │
│ DAY_2      │LC_TIME    │Name of the second day of the week (for example, Monday).  │
│ DAY_3      │LC_TIME    │Name of the third day of the week (for example, Tuesday).  │
│ DAY_4      │LC_TIME    │Name of the fourth day of the week                         │
│            │           │(for example, Wednesday).                                  │
│ DAY_5      │LC_TIME    │Name of the fifth day of the week (for example, Thursday). │
│ DAY_6      │LC_TIME    │Name of the sixth day of the week (for example, Friday).   │
│ DAY_7      │LC_TIME    │Name of the seventh day of the week                        │
│            │           │(for example, Saturday).                                   │
│ ABDAY_1    │LC_TIME    │Abbreviated name of the first day of the week.             │
│ ABDAY_2    │LC_TIME    │Abbreviated name of the second day of the week.            │
│ ABDAY_3    │LC_TIME    │Abbreviated name of the third day of the week.             │
│ ABDAY_4    │LC_TIME    │Abbreviated name of the fourth day of the week.            │
│ ABDAY_5    │LC_TIME    │Abbreviated name of the fifth day of the week.             │
│ ABDAY_6    │LC_TIME    │Abbreviated name of the sixth day of the week.             │
│ ABDAY_7    │LC_TIME    │Abbreviated name of the seventh day of the week.           │
│ MON_1      │LC_TIME    │Name of the first month of the year.                       │
│ MON_2      │LC_TIME    │Name of the second month.                                  │
│ MON_3      │LC_TIME    │Name of the third month.                                   │
│ MON_4      │LC_TIME    │Name of the fourth month.                                  │
│ MON_5      │LC_TIME    │Name of the fifth month.                                   │
│ MON_6      │LC_TIME    │Name of the sixth month.                                   │
│ MON_7      │LC_TIME    │Name of the seventh month.                                 │
│ MON_8      │LC_TIME    │Name of the eighth month.                                  │
│ MON_9      │LC_TIME    │Name of the ninth month.                                   │
│ MON_10     │LC_TIME    │Name of the tenth month.                                   │
│ MON_11     │LC_TIME    │Name of the eleventh month.                                │
│ MON_12     │LC_TIME    │Name of the twelfth month.                                 │
│ ABMON_1    │LC_TIME    │Abbreviated name of the first month.                       │
│ ABMON_2    │LC_TIME    │Abbreviated name of the second month.                      │
│ ABMON_3    │LC_TIME    │Abbreviated name of the third month.                       │
│ ABMON_4    │LC_TIME    │Abbreviated name of the fourth month.                      │
│ ABMON_5    │LC_TIME    │Abbreviated name of the fifth month.                       │
│ ABMON_6    │LC_TIME    │Abbreviated name of the sixth month.                       │
│ ABMON_7    │LC_TIME    │Abbreviated name of the seventh month.                     │
│ ABMON_8    │LC_TIME    │Abbreviated name of the eighth month.                      │
│ ABMON_9    │LC_TIME    │Abbreviated name of the ninth month.                       │
│ ABMON_10   │LC_TIME    │Abbreviated name of the tenth month.                       │
│ ABMON_11   │LC_TIME    │Abbreviated name of the eleventh month.                    │
│ ABMON_12   │LC_TIME    │Abbreviated name of the twelfth month.                     │
│ ERA        │LC_TIME    │Era description segments.                                  │
│ ERA_D_FMT  │LC_TIME    │Era date format string.                                    │
│ ERA_D_T_FMT│LC_TIME    │Era date and time format string.                           │
│ ERA_T_FMT  │LC_TIME    │Era time format string.                                    │
│ ALT_DIGITS │LC_TIME    │Alternative symbols for digits.                            │
│ RADIXCHAR  │LC_NUMERIC │Radix character.                                           │
│ THOUSEP    │LC_NUMERIC │Separator for thousands.                                   │
│ YESEXPR    │LC_MESSAGES│Affirmative response expression.                           │
│ NOEXPR     │LC_MESSAGES│Negative response expression.                              │
│ CRNCYSTR   │LC_MONETARY│Local currency symbol, preceded by '-' if the symbol       │
│            │           │should appear before the value, '+' if the symbol should   │
│            │           │appear after the value, or '.'  if the symbol should       │
│            │           │replace the radix character. If the local currency symbol  │
│            │           │is the empty string, implementations may return the empty  │
│            │           │string ("").                                               │

       If the locale's values for p_cs_precedes and n_cs_precedes do not
       match, the value of nl_langinfo(CRNCYSTR) and
       nl_langinfo_l(CRNCYSTR,loc) is unspecified.

       The following shall be declared as a function and may also be
       defined as a macro. A function prototype shall be provided.

           char *nl_langinfo(nl_item);
           char *nl_langinfo_l(nl_item, locale_t);

       Inclusion of the <langinfo.h> header may also make visible all
       symbols from <nl_types.h>.

       The following sections are informative.


       Wherever possible, users are advised to use functions compatible
       with those in the ISO C standard to access items of langinfo
       data. In particular, the strftime() function should be used to
       access date and time information defined in category LC_TIME.
       The localeconv() function should be used to access information
       corresponding to RADIXCHAR, THOUSEP, and CRNCYSTR.

RATIONALE         top




SEE ALSO         top

       Chapter 7, Locale, locale.h(0p), nl_types.h(0p)

       The System Interfaces volume of POSIX.1‐2017, nl_langinfo(3p),
       localeconv(3p), strfmon(3p), strftime(3p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  In the event of any
       discrepancy between this version and the original IEEE and The
       Open Group Standard, the original IEEE and The Open Group
       Standard is the referee document. The original Standard can be
       obtained online at .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see .

IEEE/The Open Group               2017                    langinfo.h(0P)

Pages that refer to this page: nl_types.h(0p)fscanf(3p)localeconv(3p)nl_langinfo(3p)setlocale(3p)