std:: lconv
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Defined in header
<clocale>
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struct
lconv
;
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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.
Member objects
Non-monetary numeric formatting parameters
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char*
decimal_point
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the character used as the decimal point
(public member object) |
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char*
thousands_sep
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the character used to separate groups of digits before the decimal point
(public member object) |
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char*
grouping
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a string whose elements indicate the sizes of digit groups
(public member object) |
Monetary numeric formatting parameters
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char*
mon_decimal_point
|
the character used as the decimal point
(public member object) |
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char*
mon_thousands_sep
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the character used to separate groups of digits before the decimal point
(public member object) |
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char*
mon_grouping
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a string whose elements indicate the sizes of digit groups
(public member object) |
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char*
positive_sign
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a string used to indicate non-negative monetary quantity
(public member object) |
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char*
negative_sign
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a string used to indicate negative monetary quantity
(public member object) |
Local monetary numeric formatting parameters
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char*
currency_symbol
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the symbol used for currency in the current C locale
(public member object) |
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char
frac_digits
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the number of digits after the decimal point to display in a monetary quantity
(public member object) |
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char
p_cs_precedes
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1
if currency_symbol is placed before non-negative value,
0
if after
(public member object) |
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char
n_cs_precedes
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1
if currency_symbol is placed before negative value,
0
if after
(public member object) |
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char
p_sep_by_space
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indicates the separation of
currency_symbol
,
positive_sign
, and the non-negative monetary value
(public member object) |
|
char
n_sep_by_space
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indicates the separation of
currency_symbol
,
negative_sign
, and the negative monetary value
(public member object) |
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char
p_sign_posn
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indicates the position of
positive_sign
in a non-negative monetary value
(public member object) |
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char
n_sign_posn
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indicates the position of
negative_sign
in a negative monetary value
(public member object) |
International monetary numeric formatting parameters
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char*
int_curr_symbol
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the string used as international currency name in the current C locale
(public member object) |
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char
int_frac_digits
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the number of digits after the decimal point to display in an international monetary quantity
(public member object) |
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char
int_p_cs_precedes
(C++11)
|
1
if int_curr_symbol is placed before non-negative international monetary value,
0
if after
(public member object) |
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char
int_n_cs_precedes
(C++11)
|
1
if int_curr_symboll is placed before negative international monetary value,
0
if after
(public member object) |
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char
int_p_sep_by_space
(C++11)
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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)
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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)
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indicates the position of
positive_sign
in a non-negative international monetary value
(public member object) |
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char
int_n_sign_posn
(C++11)
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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 |
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: ￥(JPY )
See also
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queries numeric and monetary formatting details of the current locale
(function) |
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defines numeric punctuation rules
(class template) |
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defines monetary formatting parameters used by
std::money_get
and
std::money_put
(class template) |
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C documentation
for
lconv
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