std::messages man page

std::messages< _CharT > — Primary class template messages.

This facet encapsulates the code to retrieve messages from message catalogs. The only thing defined by the standard for this facet is the interface. All underlying functionality is implementation-defined.

Synopsis

Inherits std::locale::facet, and std::messages_base.

Inherited by std::messages_byname< _CharT >.

Public Types

typedef int catalog
typedef _CharT char_type
Public typedefs.
typedef basic_string< _CharT > string_type
Public typedefs.

Public Member Functions

messages (size_t __refs=0)
Constructor performs initialization.
messages (__c_locale __cloc, const char *__s, size_t __refs=0)
Internal constructor. Not for general use.
void close (catalog __c) const

string_type get (catalog __c, int __set, int __msgid, const string_type &__s) const

catalog open (const basic_string< char > &__s, const locale &__loc) const

catalog open (const basic_string< char > &, const locale &, const char *) const

Static Public Attributes

static locale::id id
Numpunct facet id.

Protected Member Functions

virtual ~messages ()
Destructor.
string_type _M_convert_from_char (char *) const

char * _M_convert_to_char (const string_type &__msg) const

template<> void do_close (catalog) const

template<> void do_close (catalog) const

virtual void do_close (catalog) const

virtual string_type do_get (catalog, int, int, const string_type &__dfault) const

template<> string do_get (catalog, int, int, const string &) const
Specializations for required instantiations.
template<> wstring do_get (catalog, int, int, const wstring &) const

template<> messages< char >::catalog do_open (const basic_string< char > &, const locale &) const

template<> messages< wchar_t >::catalog do_open (const basic_string< char > &, const locale &) const

virtual catalog do_open (const basic_string< char > &, const locale &) const

Static Protected Member Functions

static __c_locale _S_clone_c_locale (__c_locale &__cloc) throw ()

static void _S_create_c_locale (__c_locale &__cloc, const char *__s, __c_locale __old=0)

static void _S_destroy_c_locale (__c_locale &__cloc)

static __c_locale _S_get_c_locale ()

static const char * _S_get_c_name () throw ()

static __c_locale _S_lc_ctype_c_locale (__c_locale __cloc, const char *__s)

Protected Attributes

__c_locale _M_c_locale_messages

const char * _M_name_messages

Detailed Description

template<typename _CharT>

class std::messages< _CharT >" Primary class template messages.

This facet encapsulates the code to retrieve messages from message catalogs. The only thing defined by the standard for this facet is the interface. All underlying functionality is implementation-defined.

This library currently implements 3 versions of the message facet. The first version (gnu) is a wrapper around gettext, provided by libintl. The second version (ieee) is a wrapper around catgets. The final version (default) does no actual translation. These implementations are only provided for char and wchar_t instantiations.

The messages template uses protected virtual functions to provide the actual results. The public accessors forward the call to the virtual functions. These virtual functions are hooks for developers to implement the behavior they require from the messages facet.

Definition at line 1797 of file locale_facets_nonio.h.

Member Typedef Documentation

template<typename _CharT> typedef _CharT std::messages< _CharT >::char_type

Public typedefs.

Definition at line 1803 of file locale_facets_nonio.h.

template<typename _CharT> typedef basic_string<_CharT> std::messages< _CharT >::string_type

Public typedefs.

Definition at line 1804 of file locale_facets_nonio.h.

Constructor & Destructor Documentation

template<typename _CharT > std::messages< _CharT >::messages (size_t __refs = 0) [explicit]

Constructor performs initialization. This is the constructor provided by the standard.

Parameters:

__refs Passed to the base facet class.

Definition at line 44 of file messages_members.h.

template<typename _CharT > std::messages< _CharT >::messages (__c_locale __cloc, const char * __s, size_t __refs = 0) [explicit]

Internal constructor. Not for general use. This is a constructor for use by the library itself to set up new locales.

Parameters:

__cloc The C locale.
__s The name of a locale.
__refs Refcount to pass to the base class.

Definition at line 50 of file messages_members.h.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str().

template<typename _CharT > std::messages< _CharT >::~messages () [protected], [virtual]

Destructor.

Definition at line 79 of file messages_members.h.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str().

Member Function Documentation

template<> string std::messages< char >::do_get (catalog, int, int, const string &) const [protected]

Specializations for required instantiations.

Member Data Documentation

template<typename _CharT> locale::id std::messages< _CharT >::id [static]

Numpunct facet id.

Definition at line 1815 of file locale_facets_nonio.h.

Author

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Info

Fri Sep 16 2016 libstdc++