table of contents
std::locale::facet(3) | C++ Standard Libary | std::locale::facet(3) |
NAME¶
std::locale::facet - std::locale::facet
Synopsis¶
Defined in header <locale>
class locale::facet;
std::locale::facet is the base class for facets. It provides a common base
class so
that locales could store pointers to the facets they implement in a single
indexed
container, and it abstracts support for facet reference counting. Whenever a
facet
is added to a locale, the locale increments the reference count in the facet
(through an implementation-specific mechanism). Whenever a locale is
destructed or
modified, it decrements the reference count in each facet it no longer
implements.
Whenever a facet's reference count becomes zero, the locale performs delete
static_cast<std::locale::facet*>(f) where f is the pointer to the
facet.
Member functions¶
constructor constructs a new facet with specified reference count
(protected member function)
operator= the copy assignment operator is deleted
(protected member function)
destructor the destructor is protected virtual
[virtual] (virtual protected member function)
Example¶
This section is incomplete
Reason: no example
See also¶
the facet index type: each facet class must declare or inherit a
public static
id member of this type
(class)
2022.07.31 | http://cppreference.com |