langinfo.h - language information constants
[XSI] #include <langinfo.h>
The <langinfo.h> header contains the constants used to identify items of langinfo data (see nl_langinfo()). The type of the constant, nl_item, shall be defined as described in <nl_types.h>.
The following constants shall be defined. 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) 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);Inclusion of the <langinfo.h> header may also make visible all symbols from <nl_types.h>.
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.
None.
None.
The System Interfaces volume of IEEE Std 1003.1-2001, nl_langinfo(), localeconv(), strfmon(), strftime(), Locale
First released in Issue 2.
The constants YESSTR and NOSTR are marked LEGACY.
The constants YESSTR and NOSTR are removed.
IEEE Std 1003.1-2001/Cor 1-2002, item XBD/TC1/D6/9 is applied, adding a sentence to the``Meaning'' column entry for the CRNCYSTR constant. This change is to accommodate historic practice.