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+// -*- C++ -*-
+//===-------------------------- codecvt -----------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_CODECVT
+#define _LIBCPP_CODECVT
+
+/*
+ codecvt synopsis
+
+namespace std
+{
+
+enum codecvt_mode
+{
+ consume_header = 4,
+ generate_header = 2,
+ little_endian = 1
+};
+
+template <class Elem, unsigned long Maxcode = 0x10ffff,
+ codecvt_mode Mode = (codecvt_mode)0>
+class codecvt_utf8
+ : public codecvt<Elem, char, mbstate_t>
+{
+ // unspecified
+};
+
+template <class Elem, unsigned long Maxcode = 0x10ffff,
+ codecvt_mode Mode = (codecvt_mode)0>
+class codecvt_utf16
+ : public codecvt<Elem, char, mbstate_t>
+{
+ // unspecified
+};
+
+template <class Elem, unsigned long Maxcode = 0x10ffff,
+ codecvt_mode Mode = (codecvt_mode)0>
+class codecvt_utf8_utf16
+ : public codecvt<Elem, char, mbstate_t>
+{
+ // unspecified
+};
+
+} // std
+
+*/
+
+#include <__config>
+#include <__locale>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+enum codecvt_mode
+{
+ consume_header = 4,
+ generate_header = 2,
+ little_endian = 1
+};
+
+// codecvt_utf8
+
+template <class _Elem> class __codecvt_utf8;
+
+template <>
+class __codecvt_utf8<wchar_t>
+ : public codecvt<wchar_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef wchar_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf8<char16_t>
+ : public codecvt<char16_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char16_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf8<char32_t>
+ : public codecvt<char32_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char32_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <class _Elem, unsigned long _Maxcode = 0x10ffff,
+ codecvt_mode _Mode = (codecvt_mode)0>
+class _LIBCPP_VISIBLE codecvt_utf8
+ : public __codecvt_utf8<_Elem>
+{
+public:
+ _LIBCPP_ALWAYS_INLINE
+ explicit codecvt_utf8(size_t __refs = 0)
+ : __codecvt_utf8<_Elem>(__refs, _Maxcode, _Mode) {}
+
+ _LIBCPP_ALWAYS_INLINE
+ ~codecvt_utf8() {}
+};
+
+// codecvt_utf16
+
+template <class _Elem, bool _LittleEndian> class __codecvt_utf16;
+
+template <>
+class __codecvt_utf16<wchar_t, false>
+ : public codecvt<wchar_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef wchar_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf16<wchar_t, true>
+ : public codecvt<wchar_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef wchar_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf16<char16_t, false>
+ : public codecvt<char16_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char16_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf16<char16_t, true>
+ : public codecvt<char16_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char16_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf16<char32_t, false>
+ : public codecvt<char32_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char32_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf16<char32_t, true>
+ : public codecvt<char32_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char32_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <class _Elem, unsigned long _Maxcode = 0x10ffff,
+ codecvt_mode _Mode = (codecvt_mode)0>
+class _LIBCPP_VISIBLE codecvt_utf16
+ : public __codecvt_utf16<_Elem, _Mode & little_endian>
+{
+public:
+ _LIBCPP_ALWAYS_INLINE
+ explicit codecvt_utf16(size_t __refs = 0)
+ : __codecvt_utf16<_Elem, _Mode & little_endian>(__refs, _Maxcode, _Mode) {}
+
+ _LIBCPP_ALWAYS_INLINE
+ ~codecvt_utf16() {}
+};
+
+// codecvt_utf8_utf16
+
+template <class _Elem> class __codecvt_utf8_utf16;
+
+template <>
+class __codecvt_utf8_utf16<wchar_t>
+ : public codecvt<wchar_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef wchar_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf8_utf16<char32_t>
+ : public codecvt<char32_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char32_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <>
+class __codecvt_utf8_utf16<char16_t>
+ : public codecvt<char16_t, char, mbstate_t>
+{
+ unsigned long _Maxcode_;
+ codecvt_mode _Mode_;
+public:
+ typedef char16_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ _LIBCPP_ALWAYS_INLINE
+ explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode,
+ codecvt_mode _Mode)
+ : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode),
+ _Mode_(_Mode) {}
+protected:
+ virtual result
+ do_out(state_type& __st,
+ const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual result
+ do_in(state_type& __st,
+ const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt,
+ intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const;
+ virtual result
+ do_unshift(state_type& __st,
+ extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const;
+ virtual int do_encoding() const throw();
+ virtual bool do_always_noconv() const throw();
+ virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end,
+ size_t __mx) const;
+ virtual int do_max_length() const throw();
+};
+
+template <class _Elem, unsigned long _Maxcode = 0x10ffff,
+ codecvt_mode _Mode = (codecvt_mode)0>
+class _LIBCPP_VISIBLE codecvt_utf8_utf16
+ : public __codecvt_utf8_utf16<_Elem>
+{
+public:
+ _LIBCPP_ALWAYS_INLINE
+ explicit codecvt_utf8_utf16(size_t __refs = 0)
+ : __codecvt_utf8_utf16<_Elem>(__refs, _Maxcode, _Mode) {}
+
+ _LIBCPP_ALWAYS_INLINE
+ ~codecvt_utf8_utf16() {}
+};
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_CODECVT
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