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std::wstring_convert(3) C++ Standard Libary std::wstring_convert(3) NAME std::wstring_convert - std::wstring_convert Synopsis Defined in header <locale> template< class Codecvt, class Elem = wchar_t, (since C++11) class Wide_alloc = std::allocator<Elem>, (deprecated in C++17) class Byte_alloc = std::allocator<char> > class wstring_convert; Class template std::wstring_convert performs conversions between byte string std::string and wide string std::basic_string<Elem>, using an indi- vidual code conversion facet Codecvt. std::wstring_convert assumes ownership of the conversion facet, and cannot use a facet managed by a locale. The standard facets suitable for use with std::wstring_convert are std::codecvt_utf8 for UTF-8/UCS2 and UTF-8/UCS4 conversions and std::codecvt_utf8_utf16 for UTF-8/UTF-16 conver- sions. Member types Member type Definition byte_string std::basic_string<char, char_traits<char>, Byte_alloc> wide_string std::basic_string<Elem, char_traits<Elem>, Wide_alloc> state_type Codecvt::state_type int_type wide_string::traits_type::int_type Member functions constructor constructs a new wstring_convert (public member function) operator= the copy assignment operator is deleted (public member function) destructor destructs the wstring_convert and its conversion facet (public member function) from_bytes converts a byte string into a wide string (public member function) to_bytes converts a wide string into a byte string (public member function) converted returns the number of characters successfully con- verted (public member function) state returns the current conversion state (public member function) See also Character locale-defined conversions multibyte UTF-8 UTF-16 (UTF-8, GB18030) mbrtoc16 / codecvt<char16_t, char, mb- state_t> UTF-16 c16rtomb(with C11's codecvt_utf8_utf16<char16_t> N/A DR488) codecvt_utf8_utf16<char32_t> codecvt_utf8_utf16<wchar_t> c16rtomb(without codecvt_utf8<char16_t> codecvt_utf16<char16_t> UCS2 C11's DR488) codecvt_utf8<wchar_t>(Windows) codecvt_utf16<wchar_t>(Windows) codecvt<char32_t, char, mb- state_t> codecvt_utf16<char32_t> UTF-32 mbrtoc32 / c32rtomb codecvt_utf8<char32_t> codecvt_utf16<wchar_t>(non-Windows) codecvt_utf8<wchar_t>(non-Win- dows) mbsrtowcs / system wide: wcsrtombs UTF-32(non-Windows) use_facet<codecvt No No UCS2(Windows) <wchar_t, char, mbstate_t>>(locale) wbuffer_convert performs conversion between a byte stream buffer and a (C++11) wide stream buffer (deprecated in C++17) (class template) codecvt_utf8 converts between UTF-8 and UCS2/UCS4 (C++11)(deprecated in C++17) (class template) codecvt_utf8_utf16 converts between UTF-8 and UTF-16 (C++11)(deprecated in C++17) (class template) http://cppreference.com 2022.07.31 std::wstring_convert(3)
NAME | Synopsis | Member types | Member functions | See also
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