std::wbuffer_convert - cppreference.com

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template<classCodecvt,classElem=wchar_t,classTr=std::char_traits<Elem>>classwbuffer_convert:publicstd::basic_streambuf<Elem,Tr>(since C++11)
(deprecated in C++17)
(removed in C++26)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

Type Definition state_typeCodecvt::state_typeData members

Member Description std::streambuf*bufptra pointer to the underlying byte stream buffer
(exposition-only member object*)Codecvt*cvtptra pointer to the allocated conversion object
(exposition-only member object*)state_typecvtstatethe conversion state object
(exposition-only member object*)Member functions

constructs a new wbuffer_convert
(public member function)

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operator=

the copy assignment operator is deleted
(public member function)destructs the wbuffer_convert and its conversion facet
(public member function)

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returns or replaces the underlying narrow stream buffer
(public member function)

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returns the current conversion state
(public member function)

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