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Showing content from https://en.cppreference.com/w/cpp/language/../algorithm/../ranges/../locale/lconv.html below:

std::lconv - cppreference.com

The class std::lconv contains numeric and monetary formatting rules as defined by a C locale. Objects of this struct may be obtained with std::localeconv. The members of std::lconv are values of type char and of type char*. Each char* member except decimal_point may be pointing at a null character (that is, at an empty C-string). The members of type char are all non-negative numbers, any of which may be CHAR_MAX if the corresponding value is not available in the current C locale.

[edit] Member objects [edit] Non-monetary numeric formatting parameters the character used as the decimal point
(public member object) the character used to separate groups of digits before the decimal point
(public member object) a string whose elements indicate the sizes of digit groups
(public member object) [edit] Monetary numeric formatting parameters the character used as the decimal point
(public member object) the character used to separate groups of digits before the decimal point
(public member object) a string whose elements indicate the sizes of digit groups
(public member object) a string used to indicate non-negative monetary quantity
(public member object) a string used to indicate negative monetary quantity
(public member object) [edit] Local monetary numeric formatting parameters the symbol used for currency in the current C locale
(public member object) the number of digits after the decimal point to display in a monetary quantity
(public member object) 1 if currency_symbol is placed before non-negative value, â0â if after
(public member object) 1 if currency_symbol is placed before negative value, â0â if after
(public member object) indicates the separation of currency_symbol, positive_sign, and the non-negative monetary value
(public member object) indicates the separation of currency_symbol, negative_sign, and the negative monetary value
(public member object) indicates the position of positive_sign in a non-negative monetary value
(public member object) indicates the position of negative_sign in a negative monetary value
(public member object) [edit] International monetary numeric formatting parameters the string used as international currency name in the current C locale
(public member object) the number of digits after the decimal point to display in an international monetary quantity
(public member object)

char int_p_cs_precedes

(C++11)

1 if int_curr_symbol is placed before non-negative international monetary value, â0â if after
(public member object)

char int_n_cs_precedes

(C++11)

1 if int_curr_symboll is placed before negative international monetary value, â0â if after
(public member object)

char int_p_sep_by_space

(C++11)

indicates the separation of int_curr_symbol, positive_sign, and the non-negative international monetary value
(public member object)

char int_n_sep_by_space

(C++11)

indicates the separation of int_curr_symbol, negative_sign, and the negative international monetary value
(public member object)

char int_p_sign_posn

(C++11)

indicates the position of positive_sign in a non-negative international monetary value
(public member object)

char int_n_sign_posn

(C++11)

indicates the position of negative_sign in a negative international monetary value
(public member object)

The characters of the C-strings pointed to by grouping and mon_grouping are interpreted according to their numeric values. When the terminating '\0' is encountered, the last value seen is assumed to repeat for the remainder of digits. If CHAR_MAX is encountered, no further digits are grouped. the typical grouping of three digits at a time is "\003".

The values of p_sep_by_space, n_sep_by_space, int_p_sep_by_space, int_n_sep_by_space are interpreted as follows:

0 no space separates the currency symbol and the value 1 sign sticks to the currency symbol, value is separated by a space 2 sign sticks to the value. Currency symbol is separated by a space

The values of p_sign_posn, n_sign_posn, int_p_sign_posn, int_n_sign_posn are interpreted as follows:

0 parentheses around the value and the currency symbol are used to represent the sign 1 sign before the value and the currency symbol 2 sign after the value and the currency symbol 3 sign before the currency symbol 4 sign after the currency symbol [edit] Example

#include <clocale>
#include <iostream>
 
int main()
{
    std::setlocale(LC_ALL, "ja_JP.UTF-8");
    std::lconv* lc = std::localeconv();
    std::cout << "Japanese currency symbol: " << lc->currency_symbol
              << '(' << lc->int_curr_symbol << ")\n";
}

Output:

Japanese currency symbol: ï¿¥(JPY )

[edit] See also

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