item

    The name of a constant that specifies the information required.
    These constants are defined in <langinfo.h>.

    The following constants are valid:

    Constant     Category     Description

    D_T_FMT      LC_TIME      String for formatting date and time
    D_FMT        LC_TIME      String for formatting date
    T_FMT        LC_TIME      String for formatting time
    T_FMT_AMPM   LC_TIME      Time format with AM/PM string
    AM_STR       LC_TIME      String that represents AM in 12-hour
                              clock notation
    PM_STR       LC_TIME      String that represents PM in 12-hour
                              clock notation
    DAY_1        LC_TIME      The name of the first day of the week
     . . .
    DAY_7        LC_TIME      The name of the seventh day of the week
    ABDAY_1      LC_TIME      The abbreviated name of the first day
                              of the week
     . . .
    ABDAY_7      LC_TIME      The abbreviated name of the seventh day
                              of the week
    MON_1        LC_TIME      The name of the first month in the year
     . . .
    MON_12       LC_TIME      The name of the twelfth month in the
                              year
    ABMON_1      LC_TIME      The abbreviated name of the first month
                              in the year
     . . .
    ABMON_12     LC_TIME      The abbreviated name of the twelfth
                              month in the year
    ERA          LC_TIME      Era description strings
    ERA_D_FMT    LC_TIME      Era date format string
    ERA_T_FMT    LC_TIME      Era time format
    ERA_D_T_FMT  LC_TIME      Era date and time format
    ALT_DIGITS   LC_TIME      Alternative symbols for digits
    RADIXCHAR    LC_NUMERIC   The radix character
    THOUSEP      LC_NUMERIC   The character used to separate groups
                              of digits in nonmonetary values
    YESEXP       LC_MESSAGES  The expression for affirmative
                              responses to yes/no questions
    NOEXP        LC_MESSAGES  The expression for negative responses
                              to yes/no questions
    CRNCYSTR     LC_MONETARY  The currency symbol. It is preceded by
                              one of the following:

                              o  A minus (-)  if the symbol is to
                                 appear before the value

                              o  A plus (+)  if the symbol is to
                                 appear after the value

                              o  A period (.)  if the symbol replaces
                                 the radix character

    CODESET      LC_CTYPE     Codeset name