category | facet | member functions |
---|---|---|
collate | collate | compare, hash, transform |
ctype | ctype | is, narrow, scan_is, scan_not, tolower, toupper, widen |
codecvt | always_noconv, encoding, in, length, max_length, out, unshift | |
monetary | moneypunct | curr_symbol, decimal_point, frac_digits, grouping, negative_sign, neg_format, positive_sign, pos_format, thousands_sep |
money_get | get | |
money_put | put | |
numeric | numpunct | decimal_point, falsename, grouping, thousands_sep, truename |
num_get | get | |
num_put | put | |
time | time_get | date_order, get_date, get_monthname, get_time, get_weekday, get_year (and get, since C++11) |
time_put | put | |
messages | messages | close, get, open |
|
|
"_byname"
. These facet types are used by the localization engine to construct the appropriate facet objects when a named locale object is constructed."do_"
. The implementation of the operation itself lies in the virtual protected member function (so that derived class can easily overwrite it), while the non-virtual public function may implement platform-specific functionality not related to the operation itself, but necessary to allow the feature to work properly on the system.char
and wchar_t
types as template parameters for the facet's character type.char
and wchar_t
types as template parameters for the facet's character type. Additionally, the codecvt facet is also required to support char16_t
and char32_t
.