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57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
550 lines
20 KiB
C++
550 lines
20 KiB
C++
// -*- C++ -*-
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//===-------------------------- codecvt -----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CODECVT
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#define _LIBCPP_CODECVT
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/*
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codecvt synopsis
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namespace std
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{
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enum codecvt_mode
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{
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consume_header = 4,
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generate_header = 2,
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little_endian = 1
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf8
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf8(size_t refs = 0);
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~codecvt_utf8();
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf16
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf16(size_t refs = 0);
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~codecvt_utf16();
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};
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template <class Elem, unsigned long Maxcode = 0x10ffff,
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codecvt_mode Mode = (codecvt_mode)0>
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class codecvt_utf8_utf16
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: public codecvt<Elem, char, mbstate_t>
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{
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explicit codecvt_utf8_utf16(size_t refs = 0);
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~codecvt_utf8_utf16();
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};
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} // std
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*/
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#include <__config>
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#include <__locale>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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enum codecvt_mode
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{
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consume_header = 4,
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generate_header = 2,
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little_endian = 1
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};
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// codecvt_utf8
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template <class _Elem> class __codecvt_utf8;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<wchar_t>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<char16_t>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8<char32_t>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <class _Elem, unsigned long _Maxcode = 0x10ffff,
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codecvt_mode _Mode = (codecvt_mode)0>
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class _LIBCPP_TEMPLATE_VIS codecvt_utf8
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: public __codecvt_utf8<_Elem>
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{
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public:
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_LIBCPP_INLINE_VISIBILITY
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explicit codecvt_utf8(size_t __refs = 0)
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: __codecvt_utf8<_Elem>(__refs, _Maxcode, _Mode) {}
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_LIBCPP_INLINE_VISIBILITY
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~codecvt_utf8() {}
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};
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// codecvt_utf16
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template <class _Elem, bool _LittleEndian> class __codecvt_utf16;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, false>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, true>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, false>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, true>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, false>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, true>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <class _Elem, unsigned long _Maxcode = 0x10ffff,
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codecvt_mode _Mode = (codecvt_mode)0>
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class _LIBCPP_TEMPLATE_VIS codecvt_utf16
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: public __codecvt_utf16<_Elem, _Mode & little_endian>
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{
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public:
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_LIBCPP_INLINE_VISIBILITY
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explicit codecvt_utf16(size_t __refs = 0)
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: __codecvt_utf16<_Elem, _Mode & little_endian>(__refs, _Maxcode, _Mode) {}
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_LIBCPP_INLINE_VISIBILITY
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~codecvt_utf16() {}
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};
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// codecvt_utf8_utf16
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template <class _Elem> class __codecvt_utf8_utf16;
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<wchar_t>
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: public codecvt<wchar_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<char32_t>
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: public codecvt<char32_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char32_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
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virtual int do_max_length() const throw();
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};
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template <>
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class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<char16_t>
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: public codecvt<char16_t, char, mbstate_t>
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{
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unsigned long _Maxcode_;
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codecvt_mode _Mode_;
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public:
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typedef char16_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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|
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_LIBCPP_INLINE_VISIBILITY
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explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
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codecvt_mode _Mode)
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: codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
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_Mode_(_Mode) {}
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protected:
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virtual result
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do_out(state_type& __st,
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const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
|
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual result
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do_in(state_type& __st,
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const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
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intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
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virtual result
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do_unshift(state_type& __st,
|
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extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
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virtual int do_encoding() const throw();
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virtual bool do_always_noconv() const throw();
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virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
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size_t __mx) const;
|
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virtual int do_max_length() const throw();
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};
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template <class _Elem, unsigned long _Maxcode = 0x10ffff,
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codecvt_mode _Mode = (codecvt_mode)0>
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class _LIBCPP_TEMPLATE_VIS codecvt_utf8_utf16
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: public __codecvt_utf8_utf16<_Elem>
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{
|
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public:
|
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_LIBCPP_INLINE_VISIBILITY
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explicit codecvt_utf8_utf16(size_t __refs = 0)
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: __codecvt_utf8_utf16<_Elem>(__refs, _Maxcode, _Mode) {}
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_LIBCPP_INLINE_VISIBILITY
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~codecvt_utf8_utf16() {}
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_CODECVT
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