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std::locale::facet(3) C++ Standard Libary std::locale::facet(3)


std::locale::facet - std::locale::facet


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)


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