C Library Function – Usage and example of localeconv()

C Standard Library - <locale.h>

Description

C Library Function struct lconv *localeconv(void) Sets or reads localization information. It returns a lconv A structure type object.

Declaration

The following is the declaration of the localeconv() function.

struct lconv　*localeconv(void)

Parameter

• NA

Return value

This function returns a pointer to a structure of type struct lconv a pointer to a structure, which is defined as follows:

typedef struct {
　　　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;
} lconv

Online example

The following example demonstrates the usage of the localeconv() function.

#include <locale.h>
#include <stdio.h>
int main()
{
　　　struct lconv　*　lc;
　　　setlocale(LC_MONETARY, "it_IT");
　　　lc = localeconv();
　　　printf("Local currency symbol: %s\n", lc->currency_symbol);
　　　printf("International currency symbol: %s\n", lc->int_curr_symbol);
　　　setlocale(LC_MONETARY, "en_US");
　　　lc = localeconv();
　　　printf("Local currency symbol: %s\n", lc->currency_symbol);
　　　printf("International currency symbol: %s\n", lc->int_curr_symbol);
　　　setlocale(LC_MONETARY, "en_GB");
　　　lc = localeconv();
　　　printf("Local currency symbol: %s\n", lc->currency_symbol);
　　　printf("International currency symbol: %s\n", lc->int_curr_symbol);
　　　printf("Decimal point = %s\n", lc->decimal_point);
　　　
　　　return 0;
}

Let's compile and run the above program, which will produce the following result:

Local currency symbol: EUR
International currency symbol: EUR
Local currency symbol: $
International currency symbol: USD
Local currency symbol: £
International currency symbol: GBP
Decimal point = .

C Standard Library - <locale.h>