std::wbuffer_convert

 

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Localizations library

Locales and facets
Locales
has_facet use_facet	locale
Facet category base classes
ctype_base codecvt_base messages_base	time_base money_base
ctype facets
ctype ctype_byname ctype<char>	codecvt codecvt_byname
numeric facets
num_get num_put	numpunct numpunct_byname
collate facets
collate	collate_byname
time facets
time_get time_get_byname	time_put time_put_byname
monetary facets
money_get money_put	moneypunct moneypunct_byname
messages facets
messages	messages_byname
Character classification and conversion
Character classification
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions
toupper tolower	wstring_convert (C++11/17*) wbuffer_convert (C++11/17*)
Code conversion facets
codecvt_utf8 (C++11/17*) codecvt_utf16 (C++11/17*)	codecvt_utf8_utf16 (C++11/17*) codecvt_mode (C++11/17*)
C locale
LC_ALLLC_COLLATELC_CTYPELC_MONETARYLC_NUMERICLC_TIME	setlocale localeconv lconv

 

std::wbuffer_convert

Member functions

wbuffer_convert::wbuffer_convert

wbuffer_convert::~wbuffer_convert

wbuffer_convert::rdbuf

wbuffer_convert::state

 

Defined in header <locale>
template<     class Codecvt,     class Elem = wchar_t,     class Tr = std::char_traits<Elem> > class wbuffer_convert : public std::basic_streambuf<Elem, Tr>		(since C++11) (deprecated in C++17)

std::wbuffer_convert is a wrapper over stream buffer of type std::basic_streambuf<char> which gives it the appearance of std::basic_streambuf<Elem>. All I/O performed through std::wbuffer_convert undergoes character conversion as defined by the facet Codecvt. std::wbuffer_convert assumes ownership of the conversion facet, and cannot use a facet managed by a locale. The standard facets suitable for use with std::wbuffer_convert are std::codecvt_utf8 for UTF-8/UCS-2 and UTF-8/UCS-4 conversions and std::codecvt_utf8_utf16 for UTF-8/UTF-16 conversions.

This class template makes the implicit character conversion functionality of std::basic_filebuf available for any std::basic_streambuf.

Member types

Member type	Definition
state_type	Codecvt::state_type

Member functions

(constructor)	constructs a new wbuffer_convert (public member function)
operator=	the copy assignment operator is deleted (public member function)
(destructor)	destructs the wbuffer_convert and its conversion facet (public member function)
rdbuf	returns or replaces the underlying narrow stream buffer (public member function)
state	returns the current conversion state (public member function)

See also

Character conversions	locale-defined multibyte (UTF-8, GB18030)	UTF-8	UTF-16
UTF-16	mbrtoc16 / c16rtomb (with C11's DR488)	codecvt<char16_t,char,mbstate_t> codecvt_utf8_utf16<char16_t> codecvt_utf8_utf16<char32_t> codecvt_utf8_utf16<wchar_t>	N/A
UCS-2	c16rtomb (without C11's DR488)	codecvt_utf8<char16_t>	codecvt_utf16<char16_t>
UTF-32	mbrtoc32 / c32rtomb	codecvt<char32_t,char,mbstate_t> codecvt_utf8<char32_t>	codecvt_utf16<char32_t>
system wchar_t: UTF-32 (non-Windows) UCS-2 (Windows)	mbsrtowcs / wcsrtombs use_facet<codecvt <wchar_t,char,mbstate_t>>(locale)	codecvt_utf8<wchar_t>	codecvt_utf16<wchar_t>

wstring_convert (C++11)(deprecated in C++17)	performs conversions between a wide string and a byte string (class template)
codecvt_utf8 (C++11)(deprecated in C++17)	converts between UTF-8 and UCS-2/UCS-4 (class template)
codecvt_utf8_utf16 (C++11)(deprecated in C++17)	converts between UTF-8 and UTF-16 (class template)