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NAME

       std::locale

SYNOPSIS

   Classes
       class facet
       class id

   Public Types
       typedef int category

   Public Member Functions
       locale ()  throw ()
       locale (const locale &__other)  throw ()
       locale (const char *__s)
       locale (const locale &__base, const char *__s, category __cat)
       locale (const locale &__base, const locale &__add, category __cat)
       template<typename _Facet > locale (const locale &__other, _Facet *__f)
       ~locale ()  throw ()
       template<typename _Facet > locale combine (const locale &__other) const
       string name () const
       bool operator!= (const locale &__other) const  throw ()
       template<typename _Char , typename _Traits , typename _Alloc > bool operator() (const
           basic_string< _Char, _Traits, _Alloc > &__s1, const basic_string< _Char, _Traits,
           _Alloc > &__s2) const
       const locale & operator= (const locale &__other)  throw ()
       bool operator== (const locale &__other) const  throw ()

   Static Public Member Functions
       static const locale & classic ()
       static locale global (const locale &__loc)

   Static Public Attributes

           static const category none
           static const category ctype
           static const category numeric
           static const category collate
           static const category time
           static const category monetary
           static const category messages
           static const category all

   Friends
       template<typename _Cache > struct __use_cache
       class _Impl
       class facet
       template<typename _Facet > bool has_facet (const locale &)  throw ()
       template<typename _Facet > const _Facet & use_facet (const locale &)

Detailed Description

       Container class for localization functionality.

       The locale class is first a class wrapper for C library locales. It is also an extensible
       container for user-defined localization. A locale is a collection of facets that implement
       various localization features such as money, time, and number printing.

       Constructing C++ locales does not change the C library locale.

       This library supports efficient construction and copying of locales through a reference
       counting implementation of the locale class.

       Definition at line 62 of file locale_classes.h.

Member Typedef Documentation

   typedef int std::locale::category
       Definition of locale::category.

       Definition at line 67 of file locale_classes.h.

Constructor & Destructor Documentation

   std::locale::locale ()
       Default constructor. Constructs a copy of the global locale. If no locale has been
       explicitly set, this is the C locale.

   std::locale::locale (const locale & __other)
       Copy constructor. Constructs a copy of other.

       Parameters:
           __other The locale to copy.

   std::locale::locale (const char * __s) [explicit]
       Named locale constructor. Constructs a copy of the named C library locale.

       Parameters:
           __s Name of the locale to construct.

       Exceptions:
           std::runtime_error if __s is null or an undefined locale.

   std::locale::locale (const locale & __base, const char * __s, category __cat)
       Construct locale with facets from another locale. Constructs a copy of the locale base.
       The facets specified by cat are replaced with those from the locale named by s. If base is
       named, this locale instance will also be named.

       Parameters:
           __base The locale to copy.
           __s Name of the locale to use facets from.
           __cat Set of categories defining the facets to use from __s.

       Exceptions:
           std::runtime_error if __s is null or an undefined locale.

   std::locale::locale (const locale & __base, const locale & __add, category __cat)
       Construct locale with facets from another locale. Constructs a copy of the locale base.
       The facets specified by cat are replaced with those from the locale add. If base and add
       are named, this locale instance will also be named.

       Parameters:
           __base The locale to copy.
           __add The locale to use facets from.
           __cat Set of categories defining the facets to use from add.

   template<typename _Facet > std::locale::locale (const locale & __other, _Facet * __f)
       Construct locale with another facet. Constructs a copy of the locale __other. The facet
       __f is added to __other, replacing an existing facet of type Facet if there is one. If __f
       is null, this locale is a copy of __other.

       Parameters:
           __other The locale to copy.
           __f The facet to add in.

   std::locale::~locale ()
       Locale destructor.

Member Function Documentation

   static const locale& std::locale::classic () [static]
       Return reference to the C locale.

       Referenced by operator!=().

   template<typename _Facet > locale std::locale::combine (const locale & __other) const
       Construct locale with another facet. Constructs and returns a new copy of this locale.
       Adds or replaces an existing facet of type Facet from the locale other into the new
       locale.

       Template Parameters:
           _Facet The facet type to copy from other

       Parameters:
           __other The locale to copy from.

       Returns:
           Newly constructed locale.

       Exceptions:
           std::runtime_error if __other has no facet of type _Facet.

   static locale std::locale::global (const locale & __loc) [static]
       Set global locale. This function sets the global locale to the argument and returns a copy
       of the previous global locale. If the argument has a name, it will also call
       std::setlocale(LC_ALL, loc.name()).

       Parameters:
           __loc The new locale to make global.

       Returns:
           Copy of the old global locale.

       Referenced by operator!=().

   string std::locale::name () const
       Return locale name.

       Returns:
           Locale name or '*' if unnamed.

   bool std::locale::operator!= (const locale & __other) const [inline]
       Locale inequality.

       Parameters:
           __other The locale to compare against.

       Returns:
           ! (*this == __other)

       Definition at line 235 of file locale_classes.h.

       References classic(), global(), operator()(), and operator==().

   template<typename _Char , typename _Traits , typename _Alloc > bool std::locale::operator()
       (const basic_string< _Char, _Traits, _Alloc > & __s1, const basic_string< _Char, _Traits,
       _Alloc > & __s2) const
       Compare two strings according to collate. Template operator to compare two strings using
       the compare function of the collate facet in this locale. One use is to provide the locale
       to the sort function. For example, a vector v of strings could be sorted according to
       locale loc by doing:

       std::sort(v.begin(), v.end(), loc);

       Parameters:
           __s1 First string to compare.
           __s2 Second string to compare.

       Returns:
           True if collate<_Char> facet compares __s1 < __s2, else false.

       Referenced by operator!=().

   const locale& std::locale::operator= (const locale & __other)
       Assignment operator. Set this locale to be a copy of other.

       Parameters:
           __other The locale to copy.

       Returns:
           A reference to this locale.

   bool std::locale::operator== (const locale & __other) const
       Locale equality.

       Parameters:
           __other The locale to compare against.

       Returns:
           True if other and this refer to the same locale instance, are copies, or have the same
           name. False otherwise.

       Referenced by operator!=().

Member Data Documentation

   const category std::locale::all [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 105 of file locale_classes.h.

   const category std::locale::collate [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 101 of file locale_classes.h.

   const category std::locale::ctype [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 99 of file locale_classes.h.

   const category std::locale::messages [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 104 of file locale_classes.h.

   const category std::locale::monetary [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 103 of file locale_classes.h.

   const category std::locale::none [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 98 of file locale_classes.h.

   const category std::locale::numeric [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 100 of file locale_classes.h.

   const category std::locale::time [static]
       Category values. The standard category values are none, ctype, numeric, collate, time,
       monetary, and messages. They form a bitmask that supports union and intersection. The
       category all is the union of these values.

       NB: Order must match _S_facet_categories definition in locale.cc

       Definition at line 102 of file locale_classes.h.

Author

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