std::locale::locale::id Class Reference

Facet ID class. More...

List of all members.

Public Member Functions

Friends


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 426 of file locale_classes.h.


Constructor & Destructor Documentation

std::locale::locale::id::id (  )  [inline]

Constructor.

Definition at line 457 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 Thu Jul 23 21:18:00 2009 for libstdc++ by  doxygen 1.5.8