std::moneypunct::grouping, do_grouping
From cppreference.com
< cpp | locale | moneypunct
| Defined in header <locale>
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| public: std::string grouping() const; |
(1) | |
| protected: virtual std::string do_grouping() const; |
(2) | |
1) Public member function, calls the member function
do_grouping of the most derived class.2) Returns the pattern that determines the grouping of the digits in the monetary output, with the same exact meaning as std::numpunct::do_grouping
Return value
The object of type std::string holding the groups. The standard specializations of std::moneypunct return an empty string, indicating no grouping. Typical groupings (e.g. the en_US locale) return "\003".
Example
Run this code
#include <locale> #include <iostream> #include <iomanip> #include <iterator> struct space_out : std::moneypunct<char> { pattern do_pos_format() const { return { {value, none, none, none} };} int do_frac_digits() const { return 0; } char_type do_thousands_sep() const { return ' ';} string_type do_grouping() const { return "\002";} }; int main() { std::cout.imbue(std::locale("en_US.UTF-8")); std::cout << "american locale: " << std::showbase << std::put_money(12345678.0)<< '\n'; std::cout.imbue(std::locale(std::cout.getloc(), new space_out)); std::cout << "locale with modified moneypunct: " << std::put_money(12345678.0)<< '\n'; }
Output:
american locale: $123,456.78 locale with modified moneypunct: 12 34 56 78
See also
| [virtual] |
provides the character to use as thousands separator (virtual protected member function) |
| [virtual] |
provides the character to use as decimal point (virtual protected member function) |