std::locale::id Class Reference

List of all members.

Detailed Description

Facet ID class.

The ID class provides facets with an index used to identify them. Every facet class must define a public static member locale::id, or be derived from a facet that provides this member, otherwise the facet cannot be used in a locale. The locale::id ensures that each class type gets a unique identifier.

Definition at line 431 of file locale_classes.h.

Public Member Functions

Friends


Constructor & Destructor Documentation

std::locale::id::id (  )  [inline]

Constructor.

Definition at line 462 of file locale_classes.h.


Friends And Related Function Documentation

template<typename _Facet>
bool has_facet ( const locale  )  throw () [friend]

Test for the presence of a facet.

has_facet tests the locale argument for the presence of the facet type provided as the template parameter. Facets derived from the facet parameter will also return true.

Parameters:
Facet The facet type to test the presence of.
locale The locale to test.
Returns:
true if locale contains a facet of type Facet, else false.

template<typename _Facet>
const _Facet& use_facet ( const locale  )  [friend]

Return a facet.

use_facet looks for and returns a reference to a facet of type Facet where Facet is the template parameter. If has_facet(locale) is true, there is a suitable facet to return. It throws std::bad_cast if the locale doesn't contain a facet of type Facet.

Parameters:
Facet The facet type to access.
locale The locale to use.
Returns:
Reference to facet of type Facet.
Exceptions:
std::bad_cast if locale doesn't contain a facet of type Facet.


The documentation for this class was generated from the following file:
Generated on Wed Mar 26 00:44:47 2008 for libstdc++ by  doxygen 1.5.1