Remove old code

Signed-off-by: Richard Qin <richard.qin.x@gmail.com>

1 files changed, 0 insertions, 1501 deletions

diff --git a/third_party/libcxx/include/c++/v1/__locale b/third_party/libcxx/include/c++/v1/__locale
deleted file mode 100644
index 5b17874..0000000
--- a/third_party/libcxx/include/c++/v1/__locale
+++ /dev/null
@@ -1,1501 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef _LIBCPP___LOCALE
-#define _LIBCPP___LOCALE
-
-#include <__config>
-
-#if _LIBCPP_HAS_LOCALIZATION
-
-#  include <__locale_dir/locale_base_api.h>
-#  include <__memory/addressof.h>
-#  include <__memory/shared_count.h>
-#  include <__mutex/once_flag.h>
-#  include <__type_traits/make_unsigned.h>
-#  include <__utility/no_destroy.h>
-#  include <__utility/private_constructor_tag.h>
-#  include <cctype>
-#  include <clocale>
-#  include <cstdint>
-#  include <cstdlib>
-#  include <string>
-
-// Some platforms require more includes than others. Keep the includes on all plaforms for now.
-#  include <cstddef>
-#  include <cstring>
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-#    include <cwchar>
-#  else
-#    include <__std_mbstate_t.h>
-#  endif
-
-#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#    pragma GCC system_header
-#  endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-class _LIBCPP_EXPORTED_FROM_ABI locale;
-
-template <class _CharT>
-class collate;
-
-template <class _Facet>
-_LIBCPP_HIDE_FROM_ABI bool has_facet(const locale&) _NOEXCEPT;
-
-template <class _Facet>
-_LIBCPP_HIDE_FROM_ABI const _Facet& use_facet(const locale&);
-
-class _LIBCPP_EXPORTED_FROM_ABI locale {
-public:
-  // locale is essentially a shared_ptr that doesn't support weak_ptrs and never got a move constructor,
-  // so it is trivially relocatable.
-  using __trivially_relocatable _LIBCPP_NODEBUG = locale;
-
-  // types:
-  class _LIBCPP_EXPORTED_FROM_ABI facet;
-  class _LIBCPP_EXPORTED_FROM_ABI id;
-
-  typedef int category;
-
-  static const category // values assigned here are for exposition only
-      none    = 0,
-      collate = _LIBCPP_COLLATE_MASK, ctype = _LIBCPP_CTYPE_MASK, monetary = _LIBCPP_MONETARY_MASK,
-      numeric = _LIBCPP_NUMERIC_MASK, time = _LIBCPP_TIME_MASK, messages = _LIBCPP_MESSAGES_MASK,
-      all = collate | ctype | monetary | numeric | time | messages;
-
-  // construct/copy/destroy:
-  locale() _NOEXCEPT;
-  locale(const locale&) _NOEXCEPT;
-  explicit locale(const char*);
-  explicit locale(const string&);
-  locale(const locale&, const char*, category);
-  locale(const locale&, const string&, category);
-  template <class _Facet>
-  _LIBCPP_HIDE_FROM_ABI locale(const locale&, _Facet*);
-  locale(const locale&, const locale&, category);
-
-  ~locale();
-
-  const locale& operator=(const locale&) _NOEXCEPT;
-
-  template <class _Facet>
-  _LIBCPP_HIDE_FROM_ABI locale combine(const locale& __other) const {
-    if (!std::has_facet<_Facet>(__other))
-      __throw_runtime_error("locale::combine: locale missing facet");
-
-    return locale(*this, std::addressof(const_cast<_Facet&>(std::use_facet<_Facet>(__other))));
-  }
-
-  // locale operations:
-  string name() const;
-  bool operator==(const locale&) const;
-#  if _LIBCPP_STD_VER <= 17
-  _LIBCPP_HIDE_FROM_ABI bool operator!=(const locale& __y) const { return !(*this == __y); }
-#  endif
-  template <class _CharT, class _Traits, class _Allocator>
-  _LIBCPP_HIDE_FROM_ABI bool operator()(const basic_string<_CharT, _Traits, _Allocator>& __x,
-                                        const basic_string<_CharT, _Traits, _Allocator>& __y) const {
-    return std::use_facet<std::collate<_CharT> >(*this).compare(
-               __x.data(), __x.data() + __x.size(), __y.data(), __y.data() + __y.size()) < 0;
-  }
-
-  // global locale objects:
-  static locale global(const locale&);
-  static const locale& classic();
-
-private:
-  class __imp;
-  __imp* __locale_;
-
-  template <class>
-  friend struct __no_destroy;
-  _LIBCPP_HIDE_FROM_ABI explicit locale(__private_constructor_tag, __imp* __loc) : __locale_(__loc) {}
-
-  void __install_ctor(const locale&, facet*, long);
-  static locale& __global();
-  bool has_facet(id&) const;
-  const facet* use_facet(id&) const;
-
-  template <class _Facet>
-  friend bool has_facet(const locale&) _NOEXCEPT;
-  template <class _Facet>
-  friend const _Facet& use_facet(const locale&);
-};
-
-class _LIBCPP_EXPORTED_FROM_ABI locale::facet : public __shared_count {
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit facet(size_t __refs = 0) : __shared_count(static_cast<long>(__refs) - 1) {}
-
-  ~facet() override;
-
-  //    facet(const facet&) = delete;     // effectively done in __shared_count
-  //    void operator=(const facet&) = delete;
-
-private:
-  void __on_zero_shared() _NOEXCEPT override;
-};
-
-class _LIBCPP_EXPORTED_FROM_ABI locale::id {
-  once_flag __flag_;
-  int32_t __id_;
-
-  static int32_t __next_id;
-
-public:
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR id() : __id_(0) {}
-  void operator=(const id&) = delete;
-  id(const id&)             = delete;
-
-public: // only needed for tests
-  long __get();
-
-  friend class locale;
-  friend class locale::__imp;
-};
-
-template <class _Facet>
-inline _LIBCPP_HIDE_FROM_ABI locale::locale(const locale& __other, _Facet* __f) {
-  __install_ctor(__other, __f, __f ? __f->id.__get() : 0);
-}
-
-template <class _Facet>
-inline _LIBCPP_HIDE_FROM_ABI bool has_facet(const locale& __l) _NOEXCEPT {
-  return __l.has_facet(_Facet::id);
-}
-
-template <class _Facet>
-inline _LIBCPP_HIDE_FROM_ABI const _Facet& use_facet(const locale& __l) {
-  return static_cast<const _Facet&>(*__l.use_facet(_Facet::id));
-}
-
-// template <class _CharT> class collate;
-
-template <class _CharT>
-class collate : public locale::facet {
-public:
-  typedef _CharT char_type;
-  typedef basic_string<char_type> string_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit collate(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI int
-  compare(const char_type* __lo1, const char_type* __hi1, const char_type* __lo2, const char_type* __hi2) const {
-    return do_compare(__lo1, __hi1, __lo2, __hi2);
-  }
-
-  // FIXME(EricWF): The _LIBCPP_ALWAYS_INLINE is needed on Windows to work
-  // around a dllimport bug that expects an external instantiation.
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_ALWAYS_INLINE string_type
-  transform(const char_type* __lo, const char_type* __hi) const {
-    return do_transform(__lo, __hi);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI long hash(const char_type* __lo, const char_type* __hi) const { return do_hash(__lo, __hi); }
-
-  static locale::id id;
-
-protected:
-  ~collate() override;
-  virtual int
-  do_compare(const char_type* __lo1, const char_type* __hi1, const char_type* __lo2, const char_type* __hi2) const;
-  virtual string_type do_transform(const char_type* __lo, const char_type* __hi) const {
-    return string_type(__lo, __hi);
-  }
-  virtual long do_hash(const char_type* __lo, const char_type* __hi) const;
-};
-
-template <class _CharT>
-locale::id collate<_CharT>::id;
-
-template <class _CharT>
-collate<_CharT>::~collate() {}
-
-template <class _CharT>
-int collate<_CharT>::do_compare(
-    const char_type* __lo1, const char_type* __hi1, const char_type* __lo2, const char_type* __hi2) const {
-  for (; __lo2 != __hi2; ++__lo1, ++__lo2) {
-    if (__lo1 == __hi1 || *__lo1 < *__lo2)
-      return -1;
-    if (*__lo2 < *__lo1)
-      return 1;
-  }
-  return __lo1 != __hi1;
-}
-
-template <class _CharT>
-long collate<_CharT>::do_hash(const char_type* __lo, const char_type* __hi) const {
-  size_t __h          = 0;
-  const size_t __sr   = __CHAR_BIT__ * sizeof(size_t) - 8;
-  const size_t __mask = size_t(0xF) << (__sr + 4);
-  for (const char_type* __p = __lo; __p != __hi; ++__p) {
-    __h        = (__h << 4) + static_cast<size_t>(*__p);
-    size_t __g = __h & __mask;
-    __h ^= __g | (__g >> __sr);
-  }
-  return static_cast<long>(__h);
-}
-
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS collate<char>;
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS collate<wchar_t>;
-#  endif
-
-// template <class CharT> class collate_byname;
-
-template <class _CharT>
-class collate_byname;
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI collate_byname<char> : public collate<char> {
-  __locale::__locale_t __l_;
-
-public:
-  typedef char char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit collate_byname(const char* __n, size_t __refs = 0);
-  explicit collate_byname(const string& __n, size_t __refs = 0);
-
-protected:
-  ~collate_byname() override;
-  int do_compare(
-      const char_type* __lo1, const char_type* __hi1, const char_type* __lo2, const char_type* __hi2) const override;
-  string_type do_transform(const char_type* __lo, const char_type* __hi) const override;
-};
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI collate_byname<wchar_t> : public collate<wchar_t> {
-  __locale::__locale_t __l_;
-
-public:
-  typedef wchar_t char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit collate_byname(const char* __n, size_t __refs = 0);
-  explicit collate_byname(const string& __n, size_t __refs = 0);
-
-protected:
-  ~collate_byname() override;
-
-  int do_compare(
-      const char_type* __lo1, const char_type* __hi1, const char_type* __lo2, const char_type* __hi2) const override;
-  string_type do_transform(const char_type* __lo, const char_type* __hi) const override;
-};
-#  endif
-
-// template <class charT> class ctype
-
-class _LIBCPP_EXPORTED_FROM_ABI ctype_base {
-public:
-#  if defined(_LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE)
-  typedef unsigned long mask;
-  static const mask space  = 1 << 0;
-  static const mask print  = 1 << 1;
-  static const mask cntrl  = 1 << 2;
-  static const mask upper  = 1 << 3;
-  static const mask lower  = 1 << 4;
-  static const mask alpha  = 1 << 5;
-  static const mask digit  = 1 << 6;
-  static const mask punct  = 1 << 7;
-  static const mask xdigit = 1 << 8;
-  static const mask blank  = 1 << 9;
-#    if defined(__BIONIC__)
-  // Historically this was a part of regex_traits rather than ctype_base. The
-  // historical value of the constant is preserved for ABI compatibility.
-  static const mask __regex_word = 0x8000;
-#    else
-  static const mask __regex_word = 1 << 10;
-#    endif // defined(__BIONIC__)
-#  elif defined(__GLIBC__)
-  typedef unsigned short mask;
-  static const mask space  = _ISspace;
-  static const mask print  = _ISprint;
-  static const mask cntrl  = _IScntrl;
-  static const mask upper  = _ISupper;
-  static const mask lower  = _ISlower;
-  static const mask alpha  = _ISalpha;
-  static const mask digit  = _ISdigit;
-  static const mask punct  = _ISpunct;
-  static const mask xdigit = _ISxdigit;
-  static const mask blank  = _ISblank;
-#    if defined(__mips__) || (BYTE_ORDER == BIG_ENDIAN)
-  static const mask __regex_word = static_cast<mask>(_ISbit(15));
-#    else
-  static const mask __regex_word = 0x80;
-#    endif
-#  elif defined(_LIBCPP_MSVCRT_LIKE)
-  typedef unsigned short mask;
-  static const mask space        = _SPACE;
-  static const mask print        = _BLANK | _PUNCT | _ALPHA | _DIGIT;
-  static const mask cntrl        = _CONTROL;
-  static const mask upper        = _UPPER;
-  static const mask lower        = _LOWER;
-  static const mask alpha        = _ALPHA;
-  static const mask digit        = _DIGIT;
-  static const mask punct        = _PUNCT;
-  static const mask xdigit       = _HEX;
-  static const mask blank        = _BLANK;
-  static const mask __regex_word = 0x4000; // 0x8000 and 0x0100 and 0x00ff are used
-#    define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_PRINT
-#    define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_ALPHA
-#  elif defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)
-#    ifdef __APPLE__
-  typedef uint32_t mask;
-#    elif defined(__FreeBSD__)
-  typedef unsigned long mask;
-#    elif defined(__NetBSD__)
-  typedef unsigned short mask;
-#    endif
-  static const mask space  = _CTYPE_S;
-  static const mask print  = _CTYPE_R;
-  static const mask cntrl  = _CTYPE_C;
-  static const mask upper  = _CTYPE_U;
-  static const mask lower  = _CTYPE_L;
-  static const mask alpha  = _CTYPE_A;
-  static const mask digit  = _CTYPE_D;
-  static const mask punct  = _CTYPE_P;
-  static const mask xdigit = _CTYPE_X;
-
-#    if defined(__NetBSD__)
-  static const mask blank = _CTYPE_BL;
-  // NetBSD defines classes up to 0x2000
-  // see sys/ctype_bits.h, _CTYPE_Q
-  static const mask __regex_word = 0x8000;
-#    else
-  static const mask blank        = _CTYPE_B;
-  static const mask __regex_word = 0x80;
-#    endif
-#  elif defined(_AIX)
-  typedef unsigned int mask;
-  static const mask space        = _ISSPACE;
-  static const mask print        = _ISPRINT;
-  static const mask cntrl        = _ISCNTRL;
-  static const mask upper        = _ISUPPER;
-  static const mask lower        = _ISLOWER;
-  static const mask alpha        = _ISALPHA;
-  static const mask digit        = _ISDIGIT;
-  static const mask punct        = _ISPUNCT;
-  static const mask xdigit       = _ISXDIGIT;
-  static const mask blank        = _ISBLANK;
-  static const mask __regex_word = 0x8000;
-#  elif _LIBCPP_LIBC_NEWLIB
-  // Same type as Newlib's _ctype_ array in newlib/libc/include/ctype.h.
-  typedef char mask;
-  // In case char is signed, static_cast is needed to avoid warning on
-  // positive value becomming negative.
-  static const mask space  = static_cast<mask>(_S);
-  static const mask print  = static_cast<mask>(_P | _U | _L | _N | _B);
-  static const mask cntrl  = static_cast<mask>(_C);
-  static const mask upper  = static_cast<mask>(_U);
-  static const mask lower  = static_cast<mask>(_L);
-  static const mask alpha  = static_cast<mask>(_U | _L);
-  static const mask digit  = static_cast<mask>(_N);
-  static const mask punct  = static_cast<mask>(_P);
-  static const mask xdigit = static_cast<mask>(_X | _N);
-  static const mask blank  = static_cast<mask>(_B);
-  // mask is already fully saturated, use a different type in regex_type_traits.
-  static const unsigned short __regex_word = 0x100;
-#    define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_PRINT
-#    define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_ALPHA
-#    define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_XDIGIT
-#  elif defined(__MVS__)
-#    if defined(__NATIVE_ASCII_F)
-  typedef unsigned int mask;
-  static const mask space  = _ISSPACE_A;
-  static const mask print  = _ISPRINT_A;
-  static const mask cntrl  = _ISCNTRL_A;
-  static const mask upper  = _ISUPPER_A;
-  static const mask lower  = _ISLOWER_A;
-  static const mask alpha  = _ISALPHA_A;
-  static const mask digit  = _ISDIGIT_A;
-  static const mask punct  = _ISPUNCT_A;
-  static const mask xdigit = _ISXDIGIT_A;
-  static const mask blank  = _ISBLANK_A;
-#    else
-  typedef unsigned short mask;
-  static const mask space  = __ISSPACE;
-  static const mask print  = __ISPRINT;
-  static const mask cntrl  = __ISCNTRL;
-  static const mask upper  = __ISUPPER;
-  static const mask lower  = __ISLOWER;
-  static const mask alpha  = __ISALPHA;
-  static const mask digit  = __ISDIGIT;
-  static const mask punct  = __ISPUNCT;
-  static const mask xdigit = __ISXDIGIT;
-  static const mask blank  = __ISBLANK;
-#    endif
-  static const mask __regex_word = 0x8000;
-#  else
-#    error unknown rune table for this platform -- do you mean to define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE?
-#  endif
-  static const mask alnum = alpha | digit;
-  static const mask graph = alnum | punct;
-
-  _LIBCPP_HIDE_FROM_ABI ctype_base() {}
-
-  static_assert((__regex_word & ~(std::make_unsigned<mask>::type)(space | print | cntrl | upper | lower | alpha |
-                                                                  digit | punct | xdigit | blank)) == __regex_word,
-                "__regex_word can't overlap other bits");
-};
-
-template <class _CharT>
-class ctype;
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI ctype<wchar_t> : public locale::facet, public ctype_base {
-public:
-  typedef wchar_t char_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit ctype(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI bool is(mask __m, char_type __c) const { return do_is(__m, __c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* is(const char_type* __low, const char_type* __high, mask* __vec) const {
-    return do_is(__low, __high, __vec);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* scan_is(mask __m, const char_type* __low, const char_type* __high) const {
-    return do_scan_is(__m, __low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* scan_not(mask __m, const char_type* __low, const char_type* __high) const {
-    return do_scan_not(__m, __low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type toupper(char_type __c) const { return do_toupper(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* toupper(char_type* __low, const char_type* __high) const {
-    return do_toupper(__low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type tolower(char_type __c) const { return do_tolower(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* tolower(char_type* __low, const char_type* __high) const {
-    return do_tolower(__low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type widen(char __c) const { return do_widen(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char* widen(const char* __low, const char* __high, char_type* __to) const {
-    return do_widen(__low, __high, __to);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char narrow(char_type __c, char __dfault) const { return do_narrow(__c, __dfault); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type*
-  narrow(const char_type* __low, const char_type* __high, char __dfault, char* __to) const {
-    return do_narrow(__low, __high, __dfault, __to);
-  }
-
-  static locale::id id;
-
-protected:
-  ~ctype() override;
-  virtual bool do_is(mask __m, char_type __c) const;
-  virtual const char_type* do_is(const char_type* __low, const char_type* __high, mask* __vec) const;
-  virtual const char_type* do_scan_is(mask __m, const char_type* __low, const char_type* __high) const;
-  virtual const char_type* do_scan_not(mask __m, const char_type* __low, const char_type* __high) const;
-  virtual char_type do_toupper(char_type) const;
-  virtual const char_type* do_toupper(char_type* __low, const char_type* __high) const;
-  virtual char_type do_tolower(char_type) const;
-  virtual const char_type* do_tolower(char_type* __low, const char_type* __high) const;
-  virtual char_type do_widen(char) const;
-  virtual const char* do_widen(const char* __low, const char* __high, char_type* __dest) const;
-  virtual char do_narrow(char_type, char __dfault) const;
-  virtual const char_type*
-  do_narrow(const char_type* __low, const char_type* __high, char __dfault, char* __dest) const;
-};
-#  endif // _LIBCPP_HAS_WIDE_CHARACTERS
-
-inline _LIBCPP_HIDE_FROM_ABI bool __libcpp_isascii(int __c) { return (__c & ~0x7F) == 0; }
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI ctype<char> : public locale::facet, public ctype_base {
-  const mask* __tab_;
-  bool __del_;
-
-public:
-  typedef char char_type;
-
-  explicit ctype(const mask* __tab = nullptr, bool __del = false, size_t __refs = 0);
-
-  _LIBCPP_HIDE_FROM_ABI bool is(mask __m, char_type __c) const {
-    return std::__libcpp_isascii(__c) ? (__tab_[static_cast<int>(__c)] & __m) != 0 : false;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* is(const char_type* __low, const char_type* __high, mask* __vec) const {
-    for (; __low != __high; ++__low, ++__vec)
-      *__vec = std::__libcpp_isascii(*__low) ? __tab_[static_cast<int>(*__low)] : 0;
-    return __low;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* scan_is(mask __m, const char_type* __low, const char_type* __high) const {
-    for (; __low != __high; ++__low)
-      if (std::__libcpp_isascii(*__low) && (__tab_[static_cast<int>(*__low)] & __m))
-        break;
-    return __low;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* scan_not(mask __m, const char_type* __low, const char_type* __high) const {
-    for (; __low != __high; ++__low)
-      if (!std::__libcpp_isascii(*__low) || !(__tab_[static_cast<int>(*__low)] & __m))
-        break;
-    return __low;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type toupper(char_type __c) const { return do_toupper(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* toupper(char_type* __low, const char_type* __high) const {
-    return do_toupper(__low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type tolower(char_type __c) const { return do_tolower(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char_type* tolower(char_type* __low, const char_type* __high) const {
-    return do_tolower(__low, __high);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char_type widen(char __c) const { return do_widen(__c); }
-
-  _LIBCPP_HIDE_FROM_ABI const char* widen(const char* __low, const char* __high, char_type* __to) const {
-    return do_widen(__low, __high, __to);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI char narrow(char_type __c, char __dfault) const { return do_narrow(__c, __dfault); }
-
-  _LIBCPP_HIDE_FROM_ABI const char*
-  narrow(const char_type* __low, const char_type* __high, char __dfault, char* __to) const {
-    return do_narrow(__low, __high, __dfault, __to);
-  }
-
-  static locale::id id;
-
-#  ifdef _CACHED_RUNES
-  static const size_t table_size = _CACHED_RUNES;
-#  else
-  static const size_t table_size = 256;
-#  endif
-  _LIBCPP_HIDE_FROM_ABI const mask* table() const _NOEXCEPT { return __tab_; }
-  static const mask* classic_table() _NOEXCEPT;
-
-protected:
-  ~ctype() override;
-  virtual char_type do_toupper(char_type __c) const;
-  virtual const char_type* do_toupper(char_type* __low, const char_type* __high) const;
-  virtual char_type do_tolower(char_type __c) const;
-  virtual const char_type* do_tolower(char_type* __low, const char_type* __high) const;
-  virtual char_type do_widen(char __c) const;
-  virtual const char* do_widen(const char* __low, const char* __high, char_type* __to) const;
-  virtual char do_narrow(char_type __c, char __dfault) const;
-  virtual const char* do_narrow(const char_type* __low, const char_type* __high, char __dfault, char* __to) const;
-};
-
-// template <class CharT> class ctype_byname;
-
-template <class _CharT>
-class ctype_byname;
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI ctype_byname<char> : public ctype<char> {
-  __locale::__locale_t __l_;
-
-public:
-  explicit ctype_byname(const char*, size_t = 0);
-  explicit ctype_byname(const string&, size_t = 0);
-
-protected:
-  ~ctype_byname() override;
-  char_type do_toupper(char_type) const override;
-  const char_type* do_toupper(char_type* __low, const char_type* __high) const override;
-  char_type do_tolower(char_type) const override;
-  const char_type* do_tolower(char_type* __low, const char_type* __high) const override;
-};
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI ctype_byname<wchar_t> : public ctype<wchar_t> {
-  __locale::__locale_t __l_;
-
-public:
-  explicit ctype_byname(const char*, size_t = 0);
-  explicit ctype_byname(const string&, size_t = 0);
-
-protected:
-  ~ctype_byname() override;
-  bool do_is(mask __m, char_type __c) const override;
-  const char_type* do_is(const char_type* __low, const char_type* __high, mask* __vec) const override;
-  const char_type* do_scan_is(mask __m, const char_type* __low, const char_type* __high) const override;
-  const char_type* do_scan_not(mask __m, const char_type* __low, const char_type* __high) const override;
-  char_type do_toupper(char_type) const override;
-  const char_type* do_toupper(char_type* __low, const char_type* __high) const override;
-  char_type do_tolower(char_type) const override;
-  const char_type* do_tolower(char_type* __low, const char_type* __high) const override;
-  char_type do_widen(char) const override;
-  const char* do_widen(const char* __low, const char* __high, char_type* __dest) const override;
-  char do_narrow(char_type, char __dfault) const override;
-  const char_type*
-  do_narrow(const char_type* __low, const char_type* __high, char __dfault, char* __dest) const override;
-};
-#  endif // _LIBCPP_HAS_WIDE_CHARACTERS
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isspace(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isprint(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool iscntrl(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isupper(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool islower(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isalpha(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isdigit(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool ispunct(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isxdigit(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isalnum(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI bool isgraph(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c);
-}
-
-template <class _CharT>
-_LIBCPP_HIDE_FROM_ABI bool isblank(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::blank, __c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI _CharT toupper(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).toupper(__c);
-}
-
-template <class _CharT>
-inline _LIBCPP_HIDE_FROM_ABI _CharT tolower(_CharT __c, const locale& __loc) {
-  return std::use_facet<ctype<_CharT> >(__loc).tolower(__c);
-}
-
-// codecvt_base
-
-class _LIBCPP_EXPORTED_FROM_ABI codecvt_base {
-public:
-  _LIBCPP_HIDE_FROM_ABI codecvt_base() {}
-  enum result { ok, partial, error, noconv };
-};
-
-// template <class internT, class externT, class stateT> class codecvt;
-
-template <class _InternT, class _ExternT, class _StateT>
-class codecvt;
-
-// template <> class codecvt<char, char, mbstate_t>
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI codecvt<char, char, mbstate_t> : public locale::facet, public codecvt_base {
-public:
-  typedef char intern_type;
-  typedef char extern_type;
-  typedef mbstate_t state_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(const char*, size_t __refs = 0) : locale::facet(__refs) {}
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-
-// template <> class codecvt<wchar_t, char, mbstate_t>
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI codecvt<wchar_t, char, mbstate_t> : public locale::facet, public codecvt_base {
-  __locale::__locale_t __l_;
-
-public:
-  typedef wchar_t intern_type;
-  typedef char extern_type;
-  typedef mbstate_t state_type;
-
-  explicit codecvt(size_t __refs = 0);
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  explicit codecvt(const char*, size_t __refs = 0);
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-#  endif // _LIBCPP_HAS_WIDE_CHARACTERS
-
-// template <> class codecvt<char16_t, char, mbstate_t> // deprecated in C++20
-
-template <>
-class _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_EXPORTED_FROM_ABI codecvt<char16_t, char, mbstate_t>
-    : public locale::facet, public codecvt_base {
-public:
-  typedef char16_t intern_type;
-  typedef char extern_type;
-  typedef mbstate_t state_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(const char*, size_t __refs = 0) : locale::facet(__refs) {}
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-
-#  if _LIBCPP_HAS_CHAR8_T
-
-// template <> class codecvt<char16_t, char8_t, mbstate_t> // C++20
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI codecvt<char16_t, char8_t, mbstate_t> : public locale::facet, public codecvt_base {
-public:
-  typedef char16_t intern_type;
-  typedef char8_t extern_type;
-  typedef mbstate_t state_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(const char*, size_t __refs = 0) : locale::facet(__refs) {}
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-
-#  endif
-
-// template <> class codecvt<char32_t, char, mbstate_t> // deprecated in C++20
-
-template <>
-class _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_EXPORTED_FROM_ABI codecvt<char32_t, char, mbstate_t>
-    : public locale::facet, public codecvt_base {
-public:
-  typedef char32_t intern_type;
-  typedef char extern_type;
-  typedef mbstate_t state_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(const char*, size_t __refs = 0) : locale::facet(__refs) {}
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-
-#  if _LIBCPP_HAS_CHAR8_T
-
-// template <> class codecvt<char32_t, char8_t, mbstate_t> // C++20
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI codecvt<char32_t, char8_t, mbstate_t> : public locale::facet, public codecvt_base {
-public:
-  typedef char32_t intern_type;
-  typedef char8_t extern_type;
-  typedef mbstate_t state_type;
-
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_out(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  unshift(state_type& __st, extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const {
-    return do_unshift(__st, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI result
-  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 {
-    return do_in(__st, __frm, __frm_end, __frm_nxt, __to, __to_end, __to_nxt);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int encoding() const _NOEXCEPT { return do_encoding(); }
-
-  _LIBCPP_HIDE_FROM_ABI bool always_noconv() const _NOEXCEPT { return do_always_noconv(); }
-
-  _LIBCPP_HIDE_FROM_ABI int
-  length(state_type& __st, const extern_type* __frm, const extern_type* __end, size_t __mx) const {
-    return do_length(__st, __frm, __end, __mx);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI int max_length() const _NOEXCEPT { return do_max_length(); }
-
-  static locale::id id;
-
-protected:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt(const char*, size_t __refs = 0) : locale::facet(__refs) {}
-
-  ~codecvt() override;
-
-  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 _NOEXCEPT;
-  virtual bool do_always_noconv() const _NOEXCEPT;
-  virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, size_t __mx) const;
-  virtual int do_max_length() const _NOEXCEPT;
-};
-
-#  endif
-
-// template <class _InternT, class _ExternT, class _StateT> class codecvt_byname
-
-template <class _InternT, class _ExternT, class _StateT>
-class codecvt_byname : public codecvt<_InternT, _ExternT, _StateT> {
-public:
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt_byname(const char* __nm, size_t __refs = 0)
-      : codecvt<_InternT, _ExternT, _StateT>(__nm, __refs) {}
-  _LIBCPP_HIDE_FROM_ABI explicit codecvt_byname(const string& __nm, size_t __refs = 0)
-      : codecvt<_InternT, _ExternT, _StateT>(__nm.c_str(), __refs) {}
-
-protected:
-  ~codecvt_byname() override;
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _InternT, class _ExternT, class _StateT>
-codecvt_byname<_InternT, _ExternT, _StateT>::~codecvt_byname() {}
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char, char, mbstate_t>;
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<wchar_t, char, mbstate_t>;
-#  endif
-extern template class _LIBCPP_DEPRECATED_IN_CXX20
-_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char16_t, char, mbstate_t>; // deprecated in C++20
-extern template class _LIBCPP_DEPRECATED_IN_CXX20
-_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char32_t, char, mbstate_t>; // deprecated in C++20
-#  if _LIBCPP_HAS_CHAR8_T
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char16_t, char8_t, mbstate_t>; // C++20
-extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char32_t, char8_t, mbstate_t>; // C++20
-#  endif
-
-template <size_t _Np>
-struct __narrow_to_utf8 {
-  template <class _OutputIterator, class _CharT>
-  _OutputIterator operator()(_OutputIterator __s, const _CharT* __wb, const _CharT* __we) const;
-};
-
-template <>
-struct __narrow_to_utf8<8> {
-  template <class _OutputIterator, class _CharT>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const _CharT* __wb, const _CharT* __we) const {
-    for (; __wb < __we; ++__wb, ++__s)
-      *__s = *__wb;
-    return __s;
-  }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_EXPORTED_FROM_ABI __narrow_to_utf8<16> : public codecvt<char16_t, char, mbstate_t> {
-  _LIBCPP_HIDE_FROM_ABI __narrow_to_utf8() : codecvt<char16_t, char, mbstate_t>(1) {}
-  _LIBCPP_SUPPRESS_DEPRECATED_POP
-
-  ~__narrow_to_utf8() override;
-
-  template <class _OutputIterator, class _CharT>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const _CharT* __wb, const _CharT* __we) const {
-    result __r = ok;
-    mbstate_t __mb;
-    while (__wb < __we && __r != error) {
-      const int __sz = 32;
-      char __buf[__sz];
-      char* __bn;
-      const char16_t* __wn = (const char16_t*)__wb;
-      __r = do_out(__mb, (const char16_t*)__wb, (const char16_t*)__we, __wn, __buf, __buf + __sz, __bn);
-      if (__r == codecvt_base::error || __wn == (const char16_t*)__wb)
-        std::__throw_runtime_error("locale not supported");
-      for (const char* __p = __buf; __p < __bn; ++__p, ++__s)
-        *__s = *__p;
-      __wb = (const _CharT*)__wn;
-    }
-    return __s;
-  }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_EXPORTED_FROM_ABI __narrow_to_utf8<32> : public codecvt<char32_t, char, mbstate_t> {
-  _LIBCPP_HIDE_FROM_ABI __narrow_to_utf8() : codecvt<char32_t, char, mbstate_t>(1) {}
-  _LIBCPP_SUPPRESS_DEPRECATED_POP
-
-  ~__narrow_to_utf8() override;
-
-  template <class _OutputIterator, class _CharT>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const _CharT* __wb, const _CharT* __we) const {
-    result __r = ok;
-    mbstate_t __mb;
-    while (__wb < __we && __r != error) {
-      const int __sz = 32;
-      char __buf[__sz];
-      char* __bn;
-      const char32_t* __wn = (const char32_t*)__wb;
-      __r = do_out(__mb, (const char32_t*)__wb, (const char32_t*)__we, __wn, __buf, __buf + __sz, __bn);
-      if (__r == codecvt_base::error || __wn == (const char32_t*)__wb)
-        std::__throw_runtime_error("locale not supported");
-      for (const char* __p = __buf; __p < __bn; ++__p, ++__s)
-        *__s = *__p;
-      __wb = (const _CharT*)__wn;
-    }
-    return __s;
-  }
-};
-
-template <size_t _Np>
-struct __widen_from_utf8 {
-  template <class _OutputIterator>
-  _OutputIterator operator()(_OutputIterator __s, const char* __nb, const char* __ne) const;
-};
-
-template <>
-struct __widen_from_utf8<8> {
-  template <class _OutputIterator>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const char* __nb, const char* __ne) const {
-    for (; __nb < __ne; ++__nb, ++__s)
-      *__s = *__nb;
-    return __s;
-  }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_EXPORTED_FROM_ABI __widen_from_utf8<16> : public codecvt<char16_t, char, mbstate_t> {
-  _LIBCPP_HIDE_FROM_ABI __widen_from_utf8() : codecvt<char16_t, char, mbstate_t>(1) {}
-  _LIBCPP_SUPPRESS_DEPRECATED_POP
-
-  ~__widen_from_utf8() override;
-
-  template <class _OutputIterator>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const char* __nb, const char* __ne) const {
-    result __r = ok;
-    mbstate_t __mb;
-    while (__nb < __ne && __r != error) {
-      const int __sz = 32;
-      char16_t __buf[__sz];
-      char16_t* __bn;
-      const char* __nn = __nb;
-      __r              = do_in(__mb, __nb, __ne - __nb > __sz ? __nb + __sz : __ne, __nn, __buf, __buf + __sz, __bn);
-      if (__r == codecvt_base::error || __nn == __nb)
-        std::__throw_runtime_error("locale not supported");
-      for (const char16_t* __p = __buf; __p < __bn; ++__p, ++__s)
-        *__s = *__p;
-      __nb = __nn;
-    }
-    return __s;
-  }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_EXPORTED_FROM_ABI __widen_from_utf8<32> : public codecvt<char32_t, char, mbstate_t> {
-  _LIBCPP_HIDE_FROM_ABI __widen_from_utf8() : codecvt<char32_t, char, mbstate_t>(1) {}
-  _LIBCPP_SUPPRESS_DEPRECATED_POP
-
-  ~__widen_from_utf8() override;
-
-  template <class _OutputIterator>
-  _LIBCPP_HIDE_FROM_ABI _OutputIterator operator()(_OutputIterator __s, const char* __nb, const char* __ne) const {
-    result __r = ok;
-    mbstate_t __mb;
-    while (__nb < __ne && __r != error) {
-      const int __sz = 32;
-      char32_t __buf[__sz];
-      char32_t* __bn;
-      const char* __nn = __nb;
-      __r              = do_in(__mb, __nb, __ne - __nb > __sz ? __nb + __sz : __ne, __nn, __buf, __buf + __sz, __bn);
-      if (__r == codecvt_base::error || __nn == __nb)
-        std::__throw_runtime_error("locale not supported");
-      for (const char32_t* __p = __buf; __p < __bn; ++__p, ++__s)
-        *__s = *__p;
-      __nb = __nn;
-    }
-    return __s;
-  }
-};
-
-// template <class charT> class numpunct
-
-template <class _CharT>
-class numpunct;
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI numpunct<char> : public locale::facet {
-public:
-  typedef char char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit numpunct(size_t __refs = 0);
-
-  _LIBCPP_HIDE_FROM_ABI char_type decimal_point() const { return do_decimal_point(); }
-  _LIBCPP_HIDE_FROM_ABI char_type thousands_sep() const { return do_thousands_sep(); }
-  _LIBCPP_HIDE_FROM_ABI string grouping() const { return do_grouping(); }
-  _LIBCPP_HIDE_FROM_ABI string_type truename() const { return do_truename(); }
-  _LIBCPP_HIDE_FROM_ABI string_type falsename() const { return do_falsename(); }
-
-  static locale::id id;
-
-protected:
-  ~numpunct() override;
-  virtual char_type do_decimal_point() const;
-  virtual char_type do_thousands_sep() const;
-  virtual string do_grouping() const;
-  virtual string_type do_truename() const;
-  virtual string_type do_falsename() const;
-
-  char_type __decimal_point_;
-  char_type __thousands_sep_;
-  string __grouping_;
-};
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI numpunct<wchar_t> : public locale::facet {
-public:
-  typedef wchar_t char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit numpunct(size_t __refs = 0);
-
-  _LIBCPP_HIDE_FROM_ABI char_type decimal_point() const { return do_decimal_point(); }
-  _LIBCPP_HIDE_FROM_ABI char_type thousands_sep() const { return do_thousands_sep(); }
-  _LIBCPP_HIDE_FROM_ABI string grouping() const { return do_grouping(); }
-  _LIBCPP_HIDE_FROM_ABI string_type truename() const { return do_truename(); }
-  _LIBCPP_HIDE_FROM_ABI string_type falsename() const { return do_falsename(); }
-
-  static locale::id id;
-
-protected:
-  ~numpunct() override;
-  virtual char_type do_decimal_point() const;
-  virtual char_type do_thousands_sep() const;
-  virtual string do_grouping() const;
-  virtual string_type do_truename() const;
-  virtual string_type do_falsename() const;
-
-  char_type __decimal_point_;
-  char_type __thousands_sep_;
-  string __grouping_;
-};
-#  endif // _LIBCPP_HAS_WIDE_CHARACTERS
-
-// template <class charT> class numpunct_byname
-
-template <class _CharT>
-class numpunct_byname;
-
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI numpunct_byname<char> : public numpunct<char> {
-public:
-  typedef char char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit numpunct_byname(const char* __nm, size_t __refs = 0);
-  explicit numpunct_byname(const string& __nm, size_t __refs = 0);
-
-protected:
-  ~numpunct_byname() override;
-};
-
-#  if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-class _LIBCPP_EXPORTED_FROM_ABI numpunct_byname<wchar_t> : public numpunct<wchar_t> {
-public:
-  typedef wchar_t char_type;
-  typedef basic_string<char_type> string_type;
-
-  explicit numpunct_byname(const char* __nm, size_t __refs = 0);
-  explicit numpunct_byname(const string& __nm, size_t __refs = 0);
-
-protected:
-  ~numpunct_byname() override;
-};
-#  endif // _LIBCPP_HAS_WIDE_CHARACTERS
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP_HAS_LOCALIZATION
-
-#endif // _LIBCPP___LOCALE