std::moneypunct::decimal_point, do_decimal_point

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Technical Specifications

 

Localizations library

Locales and facets
locale
use_facet	has_facet
Character classification
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Facet category base classes
ctype_base codecvt_base messages_base	time_base money_base
Facet categories
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Locale-specific facets
ctype_byname codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Code conversion facets
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale
setlocale localeconv lconv	LC_ALLLC_COLLATELC_CTYPELC_MONETARYLC_NUMERICLC_TIME

 

std::moneypunct

Member functions

moneypunct::moneypunct

moneypunct::~moneypunct

moneypunct::decimal_pointmoneypunct::do_decimal_point

moneypunct::thousands_sepmoneypunct::do_thousands_sep

moneypunct::groupingmoneypunct::do_grouping

moneypunct::curr_symbolmoneypunct::do_curr_symbol

moneypunct::frac_digitsmoneypunct::do_frac_digits

moneypunct::positive_signmoneypunct::do_positive_signmoneypunct::negative_signmoneypunct::do_negative_sign

moneypunct::pos_formatmoneypunct::do_pos_formatmoneypunct::neg_formatmoneypunct::do_neg_format

 

Defined in header <locale>
public: CharT decimal_point() const;	(1)
protected: virtual CharT do_decimal_point() const;	(2)

1) Public member function, calls the member function do_decimal_point of the most derived class.

2) Returns the character to use as the decimal point separator in monetary I/O if the format uses fractions (that is, if do_frac_digits() is greater than zero). For typical U.S. locales, it is the character '.' (or L'.')

Return value

The object of type CharT holding the decimal point character.

Example

Run this code

#include <iostream>
#include <iomanip>
#include <locale>
 
void show_dpt(const char* locname)
{
    std::locale loc(locname);
    std::cout.imbue(loc);
    std::cout << locname << " decimal point is '"
              << std::use_facet<std::moneypunct<char>>(loc).decimal_point()
              << "' for example: " << std::showbase << std::put_money(123);
    if (std::use_facet<std::moneypunct<char>>(loc).frac_digits() == 0)
        std::cout << " (does not use frac digits) ";
 
    std::cout << '\n';
}
 
int main()
{
    show_dpt("en_US.utf8");
    show_dpt("ja_JP.utf8");
    show_dpt("sv_SE.utf8");
    show_dpt("de_DE.utf8");
 
}

Output:

en_US.utf8 decimal point is '.' for example: $1.23
ja_JP.utf8 decimal point is '.' for example: ￥123 (does not use frac digits)
sv_SE.utf8 decimal point is ',' for example: 1,23 kr
de_DE.utf8 decimal point is ',' for example: 1,23 €

See also

do_frac_digits [virtual]

provides the number of digits to display after the decimal point (virtual protected member function)