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std::locale::facet

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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.

[edit] Member functions

constructs a new facet with specified reference count
(protected member function)
operator=
the copy assignment operator is deleted
(protected member function)
(destructor)
[virtual]
the destructor is protected virtual
(virtual protected member function)

[edit] Example

[edit] See also

the facet index type: each facet class must declare or inherit a public static member of this type
(class) [edit]