NAME
localeconv, localeconv_l – natural language formatting for C
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <locale.h>
struct lconv *
localeconv(void);
#include <xlocale.h>
struct lconv *
localeconv_l(locale_t loc);
DESCRIPTION
The localeconv() function returns a pointer to a structure which provides parameters for formatting numbers, especially currency values:
struct lconv {
char *decimal_point;
char *thousands_sep;
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 frac_digits;
char p_cs_precedes;
char p_sep_by_space;
char n_cs_precedes;
char n_sep_by_space;
char p_sign_posn;
char n_sign_posn;
char int_p_cs_precedes;
char int_n_cs_precedes;
char int_p_sep_by_space;
char int_n_sep_by_space;
char int_p_sign_posn;
char int_n_sign_posn;
};
The individual fields have the following meanings:
- decimal_point
-
The decimal point character, except for currency values, cannot be an empty string.
- thousands_sep
-
The separator between groups of digits before the decimal point, except for currency values.
- grouping
-
The sizes of the groups of digits, except for currency values. This is a pointer to a vector of integers, each of size char, representing group size from low order digit groups to high order (right to left). The list may be terminated with 0 or CHAR_MAX. If the list is terminated with 0, the last group size before the 0 is repeated to account for all the digits. If the list is terminated with CHAR_MAX, no more grouping is performed.
- int_curr_symbol
-
The standardized international currency symbol.
- currency_symbol
-
The local currency symbol.
- mon_decimal_point
-
The decimal point character for currency values.
- mon_thousands_sep
-
The separator for digit groups in currency values.
- mon_grouping
-
Like grouping but for currency values.
- positive_sign
-
The character used to denote nonnegative currency values, usually the empty string.
- negative_sign
-
The character used to denote negative currency values, usually a minus sign.
- int_frac_digits
-
The number of digits after the decimal point in an international-style currency value.
- frac_digits
-
The number of digits after the decimal point in the local style for currency values.
- p_cs_precedes
-
1 if the currency symbol precedes the currency value for nonnegative values, 0 if it follows.
- p_sep_by_space
-
1 if a space is inserted between the currency symbol and the currency value for nonnegative values, 0 otherwise.
- n_cs_precedes
-
Like p_cs_precedes but for negative values.
- n_sep_by_space
-
Like p_sep_by_space but for negative values.
- p_sign_posn
-
The location of the positive_sign with respect to a nonnegative quantity and the currency_symbol, coded as follows:
- 0
-
Parentheses around the entire string.
- 1
-
Before the string.
- 2
-
After the string.
- 3
-
Just before currency_symbol.
- 4
-
Just after currency_symbol.
- n_sign_posn
-
Like p_sign_posn but for negative currency values.
- int_p_cs_precedes
-
Same as p_cs_precedes, but for internationally formatted monetary quantities.
- int_n_cs_precedes
-
Same as n_cs_precedes, but for internationally formatted monetary quantities.
- int_p_sep_by_space
-
Same as p_sep_by_space, but for internationally formatted monetary quantities.
- int_n_sep_by_space
-
Same as n_sep_by_space, but for internationally formatted monetary quantities.
- int_p_sign_posn
-
Same as p_sign_posn, but for internationally formatted monetary quantities.
- int_n_sign_posn
-
Same as n_sign_posn, but for internationally formatted monetary quantities.
Unless mentioned above, an empty string as a value for a field indicates a zero length result or a value that is not in the current locale. A CHAR_MAX result similarly denotes an unavailable value.
While the localeconv() function uses the current locale, the localeconv_l() function may be passed a locale directly. See xlocale(3) for more information.
RETURN VALUES
The localeconv() function returns a pointer to a static object which may be altered by later calls to setlocale(3) or localeconv().
ERRORS
No errors are defined.
SEE ALSO
STANDARDS
The localeconv() function conforms to ISO/IEC 9899:1999 (“ISO C99”).
HISTORY
The localeconv() function first appeared in 4.4BSD.