localeconv(3C) DG/UX R4.11MU05 localeconv(3C)
NAME
localeconv - get numeric formatting information
SYNOPSIS
include <locale.h>
struct lconv *localeconv (void);
DESCRIPTION
localeconv sets the components of an object with type struct lconv
(defined in locale.h) with the values appropriate for the formatting
of numeric quantities (monetary and otherwise) according to the rules
of the current locale [see setlocale(3C)]. The definition of struct
lconv is given below (the values for the fields in the C locale are
given in comments):
char *decimal_point; /* "." */
char *thousands_sep; /* "" (zero length string) */
char *grouping; /* "" */
char *int_curr_symbol; /* "" */
char *currency_symbol; /* "" */
char *mon_decimal_point; /* "" */
char *mon_thousands_sep; /* "" */
char *mon_grouping; /* "" */
char *positive_sign; /* "" */
char *negative_sign; /* "" */
char int_frac_digits; /* CHAR_MAX */
char frac_digits; /* CHAR_MAX */
char p_cs_precedes; /* CHAR_MAX */
char p_sep_by_space; /* CHAR_MAX */
char n_cs_precedes; /* CHAR_MAX */
char n_sep_by_space; /* CHAR_MAX */
char p_sign_posn; /* CHAR_MAX */
char n_sign_posn; /* CHAR_MAX */
The members of the structure with type char * are strings, any of
which (except decimal_point) can point to "", to indicate that the
value is not available in the current locale or is of zero length.
The members with type char are nonnegative numbers, any of which can
be CHAR_MAX (defined in the limits.h header file) to indicate that
the value is not available in the current locale. The members are
the following:
char *decimal_point
The decimal-point character used to format non-monetary
quantities.
char *thousands_sep
The character used to separate groups of digits to the left of
the decimal-point character in formatted non-monetary
quantities.
char *grouping
A string in which each element is taken as an integer that
indicates the number of digits that comprise the current group
in a formatted non-monetary quantity. The elements of
grouping are interpreted according to the following:
CHAR_MAX No further grouping is to be performed.
0 The previous element is to be repeatedly used for the
remainder of the digits.
other The value is the number of digits that comprise the
current group. The next element is examined to determine
the size of the next group of digits to the left of the
current group.
char *int_curr_symbol
The international currency symbol applicable to the current
locale, left-justified within a four-character space-padded
field. The character sequences should match with those
specified in: ISO 4217:1987 Codes for the Representation of
Currency and Funds.
char *currency_symbol
The local currency symbol applicable to the current locale.
char *mon_decimal_point
The decimal point used to format monetary quantities.
char *mon_thousands_sep
The separator for groups of digits to the left of the decimal
point in formatted monetary quantities.
char *mon_grouping
A string in which each element is taken as an integer that
indicates the number of digits that comprise the current group
in a formatted monetary quantity. The elements of
mon_grouping are interpreted according to the rules described
under grouping.
char *positive_sign
The string used to indicate a nonnegative-valued formatted
monetary quantity.
char *negative_sign
The string used to indicate a negative-valued formatted
monetary quantity.
char int_frac_digits
The number of fractional digits (those to the right of the
decimal point) to be displayed in an internationally formatted
monetary quantity.
char frac_digits
The number of fractional digits (those to the right of the
decimal point) to be displayed in a formatted monetary
quantity.
char p_cs_precedes
Set to 1 or 0 if the currency_symbol respectively precedes or
succeeds the value for a nonnegative formatted monetary
quantity.
char p_sep_by_space
Set to 1 or 0 if the currency_symbol respectively is or is not
separated by a space from the value for a nonnegative
formatted monetary quantity.
char n_cs_precedes
Set to 1 or 0 if the currency_symbol respectively precedes or
succeeds the value for a negative formatted monetary quantity.
char n_sep_by_space
Set to 1 or 0 if the currency_symbol respectively is or is not
separated by a space from the value for a negative formatted
monetary quantity.
char p_sign_posn
Set to a value indicating the positioning of the positive_sign
for a nonnegative formatted monetary quantity. The value of
p_sign_posn is interpreted according to the following:
0 Parentheses surround the quantity and currency_symbol.
1 The sign string precedes the quantity and currency_symbol.
2 The sign string succeeds the quantity and currency_symbol.
3 The sign string immediately precedes the currency_symbol.
4 The sign string immediately succeeds the currency_symbol.
char n_sign_posn
Set to a value indicating the positioning of the negative_sign
for a negative formatted monetary quantity. The value of
n_sign_posn is interpreted according to the rules described
under p_sign_posn.
Files
/usr/lib/locale/locale/LC_MONETARY
LC_MONETARY database for locale
/usr/lib/locale/locale/LC_NUMERIC
LC_NUMERIC database for locale
Return Values
localeconv returns a pointer to the filled-in object. The structure
pointed to by the return value may be overwritten by a subsequent
call to localeconv.
Considerations for Threads Programming
+-----------+-----------------------------+
| | async- |
|function | reentrant cancel cancel |
| | point safe |
+-----------+-----------------------------+
|localeconv | Y Y N |
+-----------+-----------------------------+
USAGE
The following table illustrates the rules used by four countries to
format monetary quantities.
Country Positive format Negative format International format
Italy L.1.234 -L.1.234 ITL.1.234
Netherlands F 1.234,56 F -1.234,56 NLG 1.234,56
Norway kr1.234,56 kr1.234,56- NOK 1.234,56
Switzerland SFrs.1,234.56 SFrs.1,234.56C CHF 1,234.56
For these four countries, the respective values for the monetary
members of the structure returned by localeconv are as follows:
Italy Netherlands Norway Switzerland
int_curr_symbol "ITL." "NLG " "NOK " "CHF "
currency_symbol "L." "F" "kr" "SFrs."
mon_decimal_point "" "," "," "."
mon_thousands_sep "." "." "." ","
mon_grouping "\3" "\3" "\3" "\3"
positive_sign "" "" "" ""
negative_sign "-" "-" "-" "C"
int_frac_digits 0 2 2 2
frac_digits 0 2 2 2
p_cs_precedes 1 1 1 1
p_sep_by_space 0 1 0 0
n_cs_precedes 1 1 1 1
n_sep_by_space 0 1 0 0
p_sign_posn 1 1 1 1
n_sign_posn 1 4 2 2
REFERENCES
montbl(1M), chrtbl(1M), reentrant(3), setlocale(3C)
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