Format
#include <locale.h>
struct lconv *localeconv(void);Language Level: ANSI
Threadsafe: Yes.
Locale Sensitive: The behavior of this function might be affected by the LC_NUMERIC and LC_MONETARY categories of the current locale. For more information, see Understanding CCSIDs and Locales.
Description
The localeconv() sets the components of a structure having type struct lconv to values appropriate for the current locale. The structure might be overwritten by another call to localeconv(), or by calling the setlocale() function.
The structure contains the following elements (defaults shown are for the C locale):
| Element | Purpose of Element | Default |
|---|---|---|
| char *decimal_point | Decimal-point character used to format non-monetary quantities. | "." |
| char *thousands_sep | Character used to separate groups of digits to the left of the decimal-point character in formatted non-monetary quantities. | "" |
| char *grouping | String indicating the size of each group of digits in formatted non-monetary quantities. Each character in the string specifies the number of digits in a group. The initial character represents the size of the group immediately to the left of the decimal delimiter. The characters following this define succeeding groups to the left of the previous group. If the last character is not UCHAR_MAX, the grouping is repeated using the last character as the size. If the last character is UCHAR_MAX, grouping is only performed for the groups already in the string (no repetition). See Table 1 for an example of how grouping works. | "" |
| char *int_curr_symbol | International currency symbol for the current locale. The first three characters contain the alphabetic international currency symbol. The fourth character (usually a space) is the character used to separate the international currency symbol from the monetary quantity. | "" |
| char *currency_symbol | Local currency symbol of the current locale. | "" |
| char *mon_decimal_point | Decimal-point character used to format monetary quantities. | "" |
| char *mon_thousands_sep | Separator for digits in formatted monetary quantities. | "" |
| char *mon_grouping | String indicating the size of each group of digits in formatted monetary quantities. Each character in the string specifies the number of digits in a group. The initial character represents the size of the group immediately to the left of the decimal delimiter. The following characters define succeeding groups to the left of the previous group. If the last character is not UCHAR_MAX, the grouping is repeated using the last character as the size. If the last character is UCHAR_MAX, grouping is only performed for the groups already in the string (no repetition). See Table 1 for an example of how grouping works. | "" |
| char *positive_sign | String indicating the positive sign used in monetary quantities. | "" |
| char *negative_sign | String indicating the negative sign used in monetary quantities. | "" |
| char int_frac_digits | The number of displayed digits to the right of the decimal place for internationally formatted monetary quantities. | UCHAR_MAX |
| char frac_digits | Number of digits to the right of the decimal place in monetary quantities. | UCHAR_MAX |
| char p_cs_precedes | 1 if the currency_symbol precedes the value for a nonnegative formatted monetary quantity; 0 if it does not. | UCHAR_MAX |
| char p_sep_by_space | 1 if the currency_symbol is separated by a space from the value of a nonnegative formatted monetary quantity; 0 if it does not. | UCHAR_MAX |
| char n_cs_precedes | 1 if the currency_symbol precedes the value for a negative formatted monetary quantity; 0 if it does not. | UCHAR_MAX |
| char n_sep_by_space | 1 if the currency_symbol is separated by a space from the value of a negative formatted monetary quantity; 0 if it does not. | UCHAR_MAX |
| char p_sign_posn | Value indicating the position of the positive_sign for a nonnegative formatted monetary quantity. | UCHAR_MAX |
| char n_sign_posn | Value indicating the position of the negative_sign for a negative formatted monetary quantity. | UCHAR_MAX |
Pointers to strings with a value of "" indicate that the value is not available in the C locale or is of zero length. Elements with char types with a value of UCHAR_MAX indicate that the value is not available in the current locale.
The n_sign_posn and p_sign_posn elements can have the following values:
Grouping Example
| Locale Source | Grouping String | Number | Formatted Number |
| -1 | 0x00 | 123456789 | 123456789 |
| 3 | 0x0300 | 123456789 | 123,456,789 |
| 3;-1 | 0x03FF00 | 123456789 | 123456,789 |
| 3;2;1 | 0x03020100 | 123456789 | 1,2,3,4,56,789 |
Monetary Formatting Example:
| Country | Positive Format | Negative Format | International Format |
| Italy | L.1.230 | -L.1.230 | ITL.1.230 |
| Netherlands | F 1.234,56 | F -1.234,56 | NLG 1.234,56 |
| Norway | kr1.234,56 | kr1.234,56- | NOK1.234,56 |
| Switzerland | SFRs.1,234.56 | SFrx.1,234.56C | CHF 1,234.56 |
The above table was generated by locales with the following monetary fields:
| 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_preceds | 1 | 1 | 1 | 1 |
| n_sep_by_space | 0 | 1 | 0 | 0 |
| p_sep_posn | 1 | 1 | 1 | 1 |
| n_sign_posn | 1 | 4 | 2 | 2 |
Return Value
The localeconv() function returns a pointer to the structure.
Example that uses *CLD locale objects
This example prints out the default decimal point for your locale and then the decimal point for the LC_C_FRANCE locale.
#include <stdio.h>
#include <locale.h>
int main(void) {
char * string;
struct lconv * mylocale;
mylocale = localeconv();
/* Display default decimal point */
printf("Default decimal point is a %s\n", mylocale->decimal_point);
if (NULL != (string = setlocale(LC_ALL, LC_C_FRANCE))) {
mylocale = localeconv();
/* A comma is set to be the decimal point when the locale is LC_C_FRANCE*/
printf("France's decimal point is a %s\n", mylocale->decimal_point);
} else {
printf("setlocale(LC_ALL, LC_C_FRANCE) returned <NULL>\n");
}
return 0;
}Example that uses *LOCALE objects
/************************************************************************
This example prints out the default decimal point for
the C locale and then the decimal point for the French
locale using a *LOCALE object called
"QSYS.LIB/MYLIB.LIB/LC_FRANCE.LOCALE".
Step 1: Create a French *LOCALE object by entering the command
CRTLOCALE LOCALE('QSYS.LIB/MYLIB.LIB/LC_FRANCE.LOCALE') +
SRCFILE('QSYS.LIB/QSYSLOCALE.LIB/QLOCALESRC.FILE/ +
FR_FR.MBR') CCSID(297) *
Step 2: Compile the following C source, specifying
LOCALETYPE(*LOCALE) on the compilation command.
Step 3: Run the program.
************************************************************************/
#include <stdio.h>
#include <locale.h>
int main(void) {
char * string;
struct lconv * mylocale;
mylocale = localeconv();
/* Display default decimal point */
printf("Default decimal point is a %s\n", mylocale->decimal_point);
if (NULL != (string = setlocale(LC_ALL,
"QSYS.LIB/MYLIB.LIB/LC_FRANCE.LOCALE"))) {
mylocale = localeconv();
/* A comma is set to be the decimal point in the French locale */
printf("France's decimal point is a %s\n", mylocale->decimal_point);
} else {
printf("setlocale(LC_ALL, \"QSYS.LIB/MYLIB.LIB/LC_FRANCE.LOCALE\") \
returned <NULL>\n");
}
return 0;
}Related Information