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zig/lib/libcxx/include/__locale
Andrew Kelley 1eaf180dd0 update libcxx to llvm 16
2023-01-26 16:36:13 -07:00

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// -*- 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 <__availability>
#include <__config>
#include <cctype>
#include <cstdint>
#include <locale.h>
#include <mutex>
#include <string>
// Some platforms require more includes than others. Keep the includes on all plaforms for now.
#include <cstddef>
#include <cstring>
#if defined(_LIBCPP_MSVCRT_LIKE)
# include <__support/win32/locale_win32.h>
#elif defined(_AIX) || defined(__MVS__)
# include <__support/ibm/xlocale.h>
#elif defined(__ANDROID__)
# include <__support/android/locale_bionic.h>
#elif defined(__sun__)
# include <__support/solaris/xlocale.h>
# include <xlocale.h>
#elif defined(_NEWLIB_VERSION)
# include <__support/newlib/xlocale.h>
#elif defined(__OpenBSD__)
# include <__support/openbsd/xlocale.h>
#elif (defined(__APPLE__) || defined(__FreeBSD__))
# include <xlocale.h>
#elif defined(__Fuchsia__)
# include <__support/fuchsia/xlocale.h>
#elif defined(__wasi__)
// WASI libc uses musl's locales support.
# include <__support/musl/xlocale.h>
#elif defined(_LIBCPP_HAS_MUSL_LIBC)
# include <__support/musl/xlocale.h>
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if !defined(_LIBCPP_LOCALE__L_EXTENSIONS)
struct __libcpp_locale_guard {
_LIBCPP_INLINE_VISIBILITY
__libcpp_locale_guard(locale_t& __loc) : __old_loc_(uselocale(__loc)) {}
_LIBCPP_INLINE_VISIBILITY
~__libcpp_locale_guard() {
if (__old_loc_)
uselocale(__old_loc_);
}
locale_t __old_loc_;
private:
__libcpp_locale_guard(__libcpp_locale_guard const&);
__libcpp_locale_guard& operator=(__libcpp_locale_guard const&);
};
#elif defined(_LIBCPP_MSVCRT_LIKE)
struct __libcpp_locale_guard {
__libcpp_locale_guard(locale_t __l) :
__status(_configthreadlocale(_ENABLE_PER_THREAD_LOCALE)) {
// Setting the locale can be expensive even when the locale given is
// already the current locale, so do an explicit check to see if the
// current locale is already the one we want.
const char* __lc = __setlocale(nullptr);
// If every category is the same, the locale string will simply be the
// locale name, otherwise it will be a semicolon-separated string listing
// each category. In the second case, we know at least one category won't
// be what we want, so we only have to check the first case.
if (_VSTD::strcmp(__l.__get_locale(), __lc) != 0) {
__locale_all = _strdup(__lc);
if (__locale_all == nullptr)
__throw_bad_alloc();
__setlocale(__l.__get_locale());
}
}
~__libcpp_locale_guard() {
// The CRT documentation doesn't explicitly say, but setlocale() does the
// right thing when given a semicolon-separated list of locale settings
// for the different categories in the same format as returned by
// setlocale(LC_ALL, nullptr).
if (__locale_all != nullptr) {
__setlocale(__locale_all);
free(__locale_all);
}
_configthreadlocale(__status);
}
static const char* __setlocale(const char* __locale) {
const char* __new_locale = setlocale(LC_ALL, __locale);
if (__new_locale == nullptr)
__throw_bad_alloc();
return __new_locale;
}
int __status;
char* __locale_all = nullptr;
};
#endif
class _LIBCPP_TYPE_VIS locale;
template <class _Facet>
_LIBCPP_INLINE_VISIBILITY
bool
has_facet(const locale&) _NOEXCEPT;
template <class _Facet>
_LIBCPP_INLINE_VISIBILITY
const _Facet&
use_facet(const locale&);
class _LIBCPP_TYPE_VIS locale
{
public:
// types:
class _LIBCPP_TYPE_VIS facet;
class _LIBCPP_TYPE_VIS id;
typedef int category;
_LIBCPP_AVAILABILITY_LOCALE_CATEGORY
static const category // values assigned here are for exposition only
none = 0,
collate = LC_COLLATE_MASK,
ctype = LC_CTYPE_MASK,
monetary = LC_MONETARY_MASK,
numeric = LC_NUMERIC_MASK,
time = LC_TIME_MASK,
messages = LC_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_INLINE_VISIBILITY locale(const locale&, _Facet*);
locale(const locale&, const locale&, category);
~locale();
const locale& operator=(const locale&) _NOEXCEPT;
template <class _Facet>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
locale combine(const locale&) const;
// locale operations:
string name() const;
bool operator==(const locale&) const;
bool operator!=(const locale& __y) const {return !(*this == __y);}
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
bool operator()(const basic_string<_CharT, _Traits, _Allocator>&,
const basic_string<_CharT, _Traits, _Allocator>&) const;
// global locale objects:
static locale global(const locale&);
static const locale& classic();
private:
class __imp;
__imp* __locale_;
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_TYPE_VIS locale::facet
: public __shared_count
{
protected:
_LIBCPP_INLINE_VISIBILITY
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_TYPE_VIS locale::id
{
once_flag __flag_;
int32_t __id_;
static int32_t __next_id;
public:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR id() :__id_(0) {}
void operator=(const id&) = delete;
id(const id&) = delete;
private:
void __init();
public: // only needed for tests
long __get();
friend class locale;
friend class locale::__imp;
};
template <class _Facet>
inline _LIBCPP_INLINE_VISIBILITY
locale::locale(const locale& __other, _Facet* __f)
{
__install_ctor(__other, __f, __f ? __f->id.__get() : 0);
}
template <class _Facet>
locale
locale::combine(const locale& __other) const
{
if (!_VSTD::has_facet<_Facet>(__other))
__throw_runtime_error("locale::combine: locale missing facet");
return locale(*this, &const_cast<_Facet&>(_VSTD::use_facet<_Facet>(__other)));
}
template <class _Facet>
inline _LIBCPP_INLINE_VISIBILITY
bool
has_facet(const locale& __l) _NOEXCEPT
{
return __l.has_facet(_Facet::id);
}
template <class _Facet>
inline _LIBCPP_INLINE_VISIBILITY
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 _LIBCPP_TEMPLATE_VIS collate
: public locale::facet
{
public:
typedef _CharT char_type;
typedef basic_string<char_type> string_type;
_LIBCPP_INLINE_VISIBILITY
explicit collate(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
_LIBCPP_ALWAYS_INLINE
string_type transform(const char_type* __lo, const char_type* __hi) const
{
return do_transform(__lo, __hi);
}
_LIBCPP_INLINE_VISIBILITY
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>;
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS collate<wchar_t>;
#endif
// template <class CharT> class collate_byname;
template <class _CharT> class _LIBCPP_TEMPLATE_VIS collate_byname;
template <>
class _LIBCPP_TYPE_VIS collate_byname<char>
: public collate<char>
{
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;
};
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS collate_byname<wchar_t>
: public collate<wchar_t>
{
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 _Traits, class _Allocator>
bool
locale::operator()(const basic_string<_CharT, _Traits, _Allocator>& __x,
const basic_string<_CharT, _Traits, _Allocator>& __y) const
{
return _VSTD::use_facet<_VSTD::collate<_CharT> >(*this).compare(
__x.data(), __x.data() + __x.size(),
__y.data(), __y.data() + __y.size()) < 0;
}
// template <class charT> class ctype
class _LIBCPP_TYPE_VIS 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__)
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(__EMSCRIPTEN__) || defined(__NetBSD__)
# ifdef __APPLE__
typedef __uint32_t mask;
# elif defined(__FreeBSD__)
typedef unsigned long mask;
# elif defined(__EMSCRIPTEN__) || 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(__sun__) || 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;
# if defined(_AIX)
static const mask __regex_word = 0x8000;
# else
static const mask __regex_word = 0x80;
# endif
#elif defined(_NEWLIB_VERSION)
// Same type as Newlib's _ctype_ array in newlib/libc/include/ctype.h.
typedef char mask;
static const mask space = _S;
static const mask print = _P | _U | _L | _N | _B;
static const mask cntrl = _C;
static const mask upper = _U;
static const mask lower = _L;
static const mask alpha = _U | _L;
static const mask digit = _N;
static const mask punct = _P;
static const mask xdigit = _X | _N;
static const mask blank = _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_INLINE_VISIBILITY 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 _LIBCPP_TEMPLATE_VIS ctype;
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS ctype<wchar_t>
: public locale::facet,
public ctype_base
{
public:
typedef wchar_t char_type;
_LIBCPP_INLINE_VISIBILITY
explicit ctype(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
bool is(mask __m, char_type __c) const
{
return do_is(__m, __c);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* is(const char_type* __low, const char_type* __high, mask* __vec) const
{
return do_is(__low, __high, __vec);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* scan_is(mask __m, const char_type* __low, const char_type* __high) const
{
return do_scan_is(__m, __low, __high);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* scan_not(mask __m, const char_type* __low, const char_type* __high) const
{
return do_scan_not(__m, __low, __high);
}
_LIBCPP_INLINE_VISIBILITY
char_type toupper(char_type __c) const
{
return do_toupper(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* toupper(char_type* __low, const char_type* __high) const
{
return do_toupper(__low, __high);
}
_LIBCPP_INLINE_VISIBILITY
char_type tolower(char_type __c) const
{
return do_tolower(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* tolower(char_type* __low, const char_type* __high) const
{
return do_tolower(__low, __high);
}
_LIBCPP_INLINE_VISIBILITY
char_type widen(char __c) const
{
return do_widen(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char* widen(const char* __low, const char* __high, char_type* __to) const
{
return do_widen(__low, __high, __to);
}
_LIBCPP_INLINE_VISIBILITY
char narrow(char_type __c, char __dfault) const
{
return do_narrow(__c, __dfault);
}
_LIBCPP_INLINE_VISIBILITY
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_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY
bool is(mask __m, char_type __c) const
{
return isascii(__c) ? (__tab_[static_cast<int>(__c)] & __m) !=0 : false;
}
_LIBCPP_INLINE_VISIBILITY
const char_type* is(const char_type* __low, const char_type* __high, mask* __vec) const
{
for (; __low != __high; ++__low, ++__vec)
*__vec = isascii(*__low) ? __tab_[static_cast<int>(*__low)] : 0;
return __low;
}
_LIBCPP_INLINE_VISIBILITY
const char_type* scan_is (mask __m, const char_type* __low, const char_type* __high) const
{
for (; __low != __high; ++__low)
if (isascii(*__low) && (__tab_[static_cast<int>(*__low)] & __m))
break;
return __low;
}
_LIBCPP_INLINE_VISIBILITY
const char_type* scan_not(mask __m, const char_type* __low, const char_type* __high) const
{
for (; __low != __high; ++__low)
if (!isascii(*__low) || !(__tab_[static_cast<int>(*__low)] & __m))
break;
return __low;
}
_LIBCPP_INLINE_VISIBILITY
char_type toupper(char_type __c) const
{
return do_toupper(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* toupper(char_type* __low, const char_type* __high) const
{
return do_toupper(__low, __high);
}
_LIBCPP_INLINE_VISIBILITY
char_type tolower(char_type __c) const
{
return do_tolower(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char_type* tolower(char_type* __low, const char_type* __high) const
{
return do_tolower(__low, __high);
}
_LIBCPP_INLINE_VISIBILITY
char_type widen(char __c) const
{
return do_widen(__c);
}
_LIBCPP_INLINE_VISIBILITY
const char* widen(const char* __low, const char* __high, char_type* __to) const
{
return do_widen(__low, __high, __to);
}
_LIBCPP_INLINE_VISIBILITY
char narrow(char_type __c, char __dfault) const
{
return do_narrow(__c, __dfault);
}
_LIBCPP_INLINE_VISIBILITY
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; // FIXME: Don't hardcode this.
#endif
_LIBCPP_INLINE_VISIBILITY const mask* table() const _NOEXCEPT {return __tab_;}
static const mask* classic_table() _NOEXCEPT;
#if defined(__GLIBC__) || defined(__EMSCRIPTEN__)
static const int* __classic_upper_table() _NOEXCEPT;
static const int* __classic_lower_table() _NOEXCEPT;
#endif
#if defined(__NetBSD__)
static const short* __classic_upper_table() _NOEXCEPT;
static const short* __classic_lower_table() _NOEXCEPT;
#endif
#if defined(__MVS__)
static const unsigned short* __classic_upper_table() _NOEXCEPT;
static const unsigned short* __classic_lower_table() _NOEXCEPT;
#endif
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 _LIBCPP_TEMPLATE_VIS ctype_byname;
template <>
class _LIBCPP_TYPE_VIS ctype_byname<char>
: public ctype<char>
{
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;
};
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS ctype_byname<wchar_t>
: public ctype<wchar_t>
{
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_NO_WIDE_CHARACTERS
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isspace(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isprint(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
iscntrl(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isupper(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
islower(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isalpha(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isdigit(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
ispunct(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isxdigit(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isalnum(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
bool
isgraph(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
_CharT
toupper(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).toupper(__c);
}
template <class _CharT>
inline _LIBCPP_INLINE_VISIBILITY
_CharT
tolower(_CharT __c, const locale& __loc)
{
return std::use_facet<ctype<_CharT> >(__loc).tolower(__c);
}
// codecvt_base
class _LIBCPP_TYPE_VIS codecvt_base
{
public:
_LIBCPP_INLINE_VISIBILITY 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 _LIBCPP_TEMPLATE_VIS codecvt;
// template <> class codecvt<char, char, mbstate_t>
template <>
class _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY
explicit codecvt(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int max_length() const _NOEXCEPT
{
return do_max_length();
}
static locale::id id;
protected:
_LIBCPP_INLINE_VISIBILITY
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>
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS codecvt<wchar_t, char, mbstate_t>
: public locale::facet,
public codecvt_base
{
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_NO_WIDE_CHARACTERS
// template <> class codecvt<char16_t, char, mbstate_t> // deprecated in C++20
template <>
class _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY
explicit codecvt(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int max_length() const _NOEXCEPT
{
return do_max_length();
}
static locale::id id;
protected:
_LIBCPP_INLINE_VISIBILITY
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;
};
#ifndef _LIBCPP_HAS_NO_CHAR8_T
// template <> class codecvt<char16_t, char8_t, mbstate_t> // C++20
template <>
class _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY
explicit codecvt(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int max_length() const _NOEXCEPT
{
return do_max_length();
}
static locale::id id;
protected:
_LIBCPP_INLINE_VISIBILITY
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_TYPE_VIS 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_INLINE_VISIBILITY
explicit codecvt(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int max_length() const _NOEXCEPT
{
return do_max_length();
}
static locale::id id;
protected:
_LIBCPP_INLINE_VISIBILITY
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;
};
#ifndef _LIBCPP_HAS_NO_CHAR8_T
// template <> class codecvt<char32_t, char8_t, mbstate_t> // C++20
template <>
class _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY
explicit codecvt(size_t __refs = 0)
: locale::facet(__refs) {}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int encoding() const _NOEXCEPT
{
return do_encoding();
}
_LIBCPP_INLINE_VISIBILITY
bool always_noconv() const _NOEXCEPT
{
return do_always_noconv();
}
_LIBCPP_INLINE_VISIBILITY
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_INLINE_VISIBILITY
int max_length() const _NOEXCEPT
{
return do_max_length();
}
static locale::id id;
protected:
_LIBCPP_INLINE_VISIBILITY
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 _LIBCPP_TEMPLATE_VIS codecvt_byname
: public codecvt<_InternT, _ExternT, _StateT>
{
public:
_LIBCPP_INLINE_VISIBILITY
explicit codecvt_byname(const char* __nm, size_t __refs = 0)
: codecvt<_InternT, _ExternT, _StateT>(__nm, __refs) {}
_LIBCPP_INLINE_VISIBILITY
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>;
#ifndef _LIBCPP_HAS_NO_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
#ifndef _LIBCPP_HAS_NO_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_INLINE_VISIBILITY
_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_TYPE_VIS __narrow_to_utf8<16>
: public codecvt<char16_t, char, mbstate_t>
{
_LIBCPP_INLINE_VISIBILITY
__narrow_to_utf8() : codecvt<char16_t, char, mbstate_t>(1) {}
_LIBCPP_SUPPRESS_DEPRECATED_POP
~__narrow_to_utf8() override;
template <class _OutputIterator, class _CharT>
_LIBCPP_INLINE_VISIBILITY
_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)
__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_TYPE_VIS __narrow_to_utf8<32>
: public codecvt<char32_t, char, mbstate_t>
{
_LIBCPP_INLINE_VISIBILITY
__narrow_to_utf8() : codecvt<char32_t, char, mbstate_t>(1) {}
_LIBCPP_SUPPRESS_DEPRECATED_POP
~__narrow_to_utf8() override;
template <class _OutputIterator, class _CharT>
_LIBCPP_INLINE_VISIBILITY
_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)
__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_INLINE_VISIBILITY
_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_TYPE_VIS __widen_from_utf8<16>
: public codecvt<char16_t, char, mbstate_t>
{
_LIBCPP_INLINE_VISIBILITY
__widen_from_utf8() : codecvt<char16_t, char, mbstate_t>(1) {}
_LIBCPP_SUPPRESS_DEPRECATED_POP
~__widen_from_utf8() override;
template <class _OutputIterator>
_LIBCPP_INLINE_VISIBILITY
_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)
__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_TYPE_VIS __widen_from_utf8<32>
: public codecvt<char32_t, char, mbstate_t>
{
_LIBCPP_INLINE_VISIBILITY
__widen_from_utf8() : codecvt<char32_t, char, mbstate_t>(1) {}
_LIBCPP_SUPPRESS_DEPRECATED_POP
~__widen_from_utf8() override;
template <class _OutputIterator>
_LIBCPP_INLINE_VISIBILITY
_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)
__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 _LIBCPP_TEMPLATE_VIS numpunct;
template <>
class _LIBCPP_TYPE_VIS numpunct<char>
: public locale::facet
{
public:
typedef char char_type;
typedef basic_string<char_type> string_type;
explicit numpunct(size_t __refs = 0);
_LIBCPP_INLINE_VISIBILITY char_type decimal_point() const {return do_decimal_point();}
_LIBCPP_INLINE_VISIBILITY char_type thousands_sep() const {return do_thousands_sep();}
_LIBCPP_INLINE_VISIBILITY string grouping() const {return do_grouping();}
_LIBCPP_INLINE_VISIBILITY string_type truename() const {return do_truename();}
_LIBCPP_INLINE_VISIBILITY 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_;
};
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS 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_INLINE_VISIBILITY char_type decimal_point() const {return do_decimal_point();}
_LIBCPP_INLINE_VISIBILITY char_type thousands_sep() const {return do_thousands_sep();}
_LIBCPP_INLINE_VISIBILITY string grouping() const {return do_grouping();}
_LIBCPP_INLINE_VISIBILITY string_type truename() const {return do_truename();}
_LIBCPP_INLINE_VISIBILITY 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_NO_WIDE_CHARACTERS
// template <class charT> class numpunct_byname
template <class _CharT> class _LIBCPP_TEMPLATE_VIS numpunct_byname;
template <>
class _LIBCPP_TYPE_VIS 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;
private:
void __init(const char*);
};
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
class _LIBCPP_TYPE_VIS 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;
private:
void __init(const char*);
};
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___LOCALE
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