std::locale::id Class Reference

#include <locale_classes.h>

Public Member Functions
	id ()
size_t	_M_id () const throw ()

Friends
template<typename _Facet >
bool	has_facet (const locale &) throw ()
class	locale
class	locale::_Impl
template<typename _Facet >
const _Facet &	use_facet (const locale &)

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 485 of file locale_classes.h.

Constructor & Destructor Documentation

id()

std::locale::id::id ( )

inline

Constructor.

Definition at line 516 of file locale_classes.h.

Friends And Related Symbol Documentation

has_facet

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.

Template Parameters

_Facet

The facet type to test the presence of.

Parameters

__loc

The locale to test.

Returns

true if __loc contains a facet of type _Facet, else false.

Definition at line 104 of file locale_classes.tcc.

locale

friend class locale

friend

Definition at line 488 of file locale_classes.h.

locale::_Impl

friend class locale::_Impl

friend

Definition at line 489 of file locale_classes.h.

use_facet

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.

Template Parameters

_Facet

The facet type to access.

Parameters

__loc

The locale to use.

Returns

Reference to facet of type Facet.

Exceptions

std::bad_cast

if __loc doesn't contain a facet of type _Facet.

Definition at line 143 of file locale_classes.tcc.

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The documentation for this class was generated from the following file:

• locale_classes.h