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STL/stl/inc/xlocinfo

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C++
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// xlocinfo internal header
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef _XLOCINFO_
#define _XLOCINFO_
#include <yvals.h>
#if _STL_COMPILER_PREPROCESSOR
#include <__msvc_xlocinfo_types.hpp>
#include <cctype>
#include <clocale>
#include <cstdio> // TRANSITION, VSO-661721
#include <cstdlib>
#include <cwchar>
#include <xstring>
#pragma pack(push, _CRT_PACKING)
#pragma warning(push, _STL_WARNING_LEVEL)
#pragma warning(disable : _STL_DISABLED_WARNINGS)
_STL_DISABLE_CLANG_WARNINGS
#pragma push_macro("new")
#undef new
_EXTERN_C_UNLESS_PURE
#define _X_ALL LC_ALL
#define _X_COLLATE LC_COLLATE
#define _X_CTYPE LC_CTYPE
#define _X_MONETARY LC_MONETARY
#define _X_NUMERIC LC_NUMERIC
#define _X_TIME LC_TIME
#define _X_MAX LC_MAX
#define _X_MESSAGES 6
#define _NCAT (_X_MESSAGES + 1) // maximum + 1
#define _CATMASK(n) ((1 << (n)) >> 1)
#define _M_COLLATE _CATMASK(_X_COLLATE)
#define _M_CTYPE _CATMASK(_X_CTYPE)
#define _M_MONETARY _CATMASK(_X_MONETARY)
#define _M_NUMERIC _CATMASK(_X_NUMERIC)
#define _M_TIME _CATMASK(_X_TIME)
#define _M_MESSAGES _CATMASK(_X_MESSAGES)
#define _M_ALL (_CATMASK(_NCAT) - 1)
_CRTIMP2_PURE _Collvec __CLRCALL_PURE_OR_CDECL _Getcoll() noexcept;
_CRTIMP2_PURE _Ctypevec __CLRCALL_PURE_OR_CDECL _Getctype() noexcept;
_CRTIMP2_PURE _Cvtvec __CLRCALL_PURE_OR_CDECL _Getcvt() noexcept;
_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Getdateorder() noexcept;
#ifdef _M_CEE_PURE
[System::Runtime::InteropServices::DllImport(_CRT_MSVCP_CURRENT, EntryPoint = "_Mbrtowc",
CallingConvention = System::Runtime::InteropServices::CallingConvention::Cdecl)] extern "C" int
_Mbrtowc(_Out_opt_ wchar_t*, const char*, size_t, mbstate_t*, const _Cvtvec*) noexcept;
#else // ^^^ defined(_M_CEE_PURE) / !defined(_M_CEE_PURE) vvv
_MRTIMP2 _Success_(return >= 0) int __cdecl _Mbrtowc(_When_(_Max_multibyte != 0, _Out_) wchar_t*, const char*,
size_t _Max_multibyte, mbstate_t*, const _Cvtvec*) noexcept;
#endif // ^^^ !defined(_M_CEE_PURE) ^^^
_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Strcoll(
const char*, const char*, const char*, const char*, const _Collvec*) noexcept;
_CRTIMP2_PURE size_t __CLRCALL_PURE_OR_CDECL _Strxfrm(_Out_writes_(_End1 - _String1)
_Post_readable_size_(return) char* _String1,
_In_z_ char* _End1, const char*, const char*, const _Collvec*) noexcept;
_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Tolower(int, const _Ctypevec*) noexcept;
_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Toupper(int, const _Ctypevec*) noexcept;
_CRTIMP2_PURE _Success_(return != -1) int __CLRCALL_PURE_OR_CDECL
_Wcrtomb(_Out_ char*, wchar_t, mbstate_t*, const _Cvtvec*) noexcept;
_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Wcscoll(
const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const _Collvec*) noexcept;
_CRTIMP2_PURE size_t __CLRCALL_PURE_OR_CDECL _Wcsxfrm(_Out_writes_(_End1 - _String1) _Post_readable_size_(return)
wchar_t* _String1,
_In_z_ wchar_t* _End1, const wchar_t*, const wchar_t*, const _Collvec*) noexcept;
_CRTIMP2_PURE short __CLRCALL_PURE_OR_CDECL _Getwctype(wchar_t, const _Ctypevec*) noexcept;
_CRTIMP2_PURE const wchar_t* __CLRCALL_PURE_OR_CDECL _Getwctypes(
const wchar_t*, const wchar_t*, short*, const _Ctypevec*) noexcept;
_CRTIMP2_PURE wchar_t __CLRCALL_PURE_OR_CDECL _Towlower(wchar_t, const _Ctypevec*) noexcept;
_CRTIMP2_PURE wchar_t __CLRCALL_PURE_OR_CDECL _Towupper(wchar_t, const _Ctypevec*) noexcept;
_END_EXTERN_C_UNLESS_PURE
extern "C" {
// These _should_ be explicitly `noexcept` but cannot be made so here because
// the primary declarations in the C runtime headers are not.
_Success_(return != 0) _Ret_z_ _ACRTIMP char* __cdecl _Getdays();
_Success_(return != 0) _Ret_z_ _ACRTIMP char* __cdecl _Getmonths();
_ACRTIMP void* __cdecl _Gettnames();
_Success_(return > 0) _ACRTIMP size_t __cdecl _Strftime(
_Out_writes_z_(_Maxsize) char*, _In_ size_t _Maxsize, _In_z_ const char*, _In_ const tm*, _In_opt_ void*);
_Success_(return != 0) _Ret_z_ _ACRTIMP wchar_t* __cdecl _W_Getdays();
_Success_(return != 0) _Ret_z_ _ACRTIMP wchar_t* __cdecl _W_Getmonths();
_ACRTIMP void* __cdecl _W_Gettnames();
_Success_(return > 0) _ACRTIMP size_t __cdecl _Wcsftime(
_Out_writes_z_(_Maxsize) wchar_t*, _In_ size_t _Maxsize, _In_z_ const wchar_t*, _In_ const tm*, _In_opt_ void*);
} // extern "C"
_STD_BEGIN
extern "C++" class _CRTIMP2_PURE_IMPORT _Timevec { // smart pointer to information used by _Strftime
public:
explicit __CLR_OR_THIS_CALL _Timevec(void* _Ptr = nullptr) : _Timeptr(_Ptr) {}
__CLR_OR_THIS_CALL _Timevec(const _Timevec& _Right) : _Timeptr(nullptr) {
*this = _Right;
}
__CLR_OR_THIS_CALL ~_Timevec() noexcept {
_CSTD free(_Timeptr);
}
_Timevec& __CLR_OR_THIS_CALL operator=(const _Timevec& _Right) { // transfer ownership of _Timeptr from _Right
if (this != &_Right) {
_CSTD free(_Timeptr);
_Timeptr = _Right._Timeptr;
const_cast<_Timevec&>(_Right)._Timeptr = nullptr; // TRANSITION, should be movable-only
}
return *this;
}
void* __CLR_OR_THIS_CALL _Getptr() const {
return _Timeptr;
}
private:
void* _Timeptr; // pointer to time information
};
extern "C++" template <class _Elem>
class _CRTIMP2_PURE_IMPORT _Yarn { // wrap a NTCTS
public:
__CLR_OR_THIS_CALL _Yarn() noexcept : _Myptr(nullptr), _Nul(0) {}
__CLR_OR_THIS_CALL _Yarn(const _Yarn& _Right) noexcept : _Myptr(nullptr), _Nul(0) {
*this = _Right;
}
__CLR_OR_THIS_CALL _Yarn(const _Elem* _Right) noexcept : _Myptr(nullptr), _Nul(0) {
*this = _Right;
}
_Yarn& __CLR_OR_THIS_CALL operator=(const _Yarn& _Right) noexcept {
return *this = _Right._Myptr;
}
_Yarn& __CLR_OR_THIS_CALL operator=(const _Elem* _Right) noexcept {
if (_Myptr != _Right) { // new value, discard old and copy new
_Tidy();
if (_Right) { // new is not empty, copy it
const _Elem* _Ptr = _Right;
while (*_Ptr != _Elem{}) {
++_Ptr;
}
const auto _Count = (++_Ptr - _Right) * sizeof(_Elem);
#ifdef _DEBUG
_Myptr = static_cast<_Elem*>(_malloc_dbg(_Count, _CRT_BLOCK, __FILE__, __LINE__));
#else
_Myptr = static_cast<_Elem*>(_CSTD malloc(_Count));
#endif
if (_Myptr) {
_CSTD memcpy(_Myptr, _Right, _Count);
}
}
}
return *this;
}
__CLR_OR_THIS_CALL ~_Yarn() noexcept {
_Tidy();
}
_NODISCARD bool __CLR_OR_THIS_CALL empty() const noexcept {
return _Myptr == nullptr;
}
_Ret_z_ const _Elem* __CLR_OR_THIS_CALL c_str() const noexcept {
return _Myptr ? _Myptr : &_Nul;
}
_NODISCARD bool __CLR_OR_THIS_CALL _Empty() const noexcept {
return _Myptr == nullptr;
}
_Ret_z_ const _Elem* __CLR_OR_THIS_CALL _C_str() const noexcept {
return _Myptr ? _Myptr : &_Nul;
}
private:
void __CLR_OR_THIS_CALL _Tidy() noexcept {
if (_Myptr) {
#ifdef _DEBUG
_free_dbg(_Myptr, _CRT_BLOCK);
#else
_CSTD free(_Myptr);
#endif
}
_Myptr = nullptr;
}
_Elem* _Myptr; // pointer to allocated string
_Elem _Nul; // nul terminator for unallocated string
};
extern "C++" class _CRTIMP2_PURE_IMPORT _Locinfo { // summary of all stuff specific to a locale used by standard facets
public:
using _Collvec = ::_Collvec;
using _Ctypevec = ::_Ctypevec;
using _Cvtvec = ::_Cvtvec;
using _Timevec = _STD _Timevec;
static void __CLRCALL_PURE_OR_CDECL _Locinfo_ctor(_Locinfo*, const char*);
static void __CLRCALL_PURE_OR_CDECL _Locinfo_ctor(_Locinfo*, int, const char*);
static void __CLRCALL_PURE_OR_CDECL _Locinfo_dtor(_Locinfo*);
static _Locinfo& __CLRCALL_PURE_OR_CDECL _Locinfo_Addcats(_Locinfo*, int, const char*);
__CLR_OR_THIS_CALL _Locinfo(const char* _Pch = "C")
#ifndef _M_CEE_PURE
: _Lock(_LOCK_LOCALE)
#endif // !defined(_M_CEE_PURE)
{
if (_Pch) {
_Locinfo_ctor(this, _Pch);
return;
}
_Xruntime_error("bad locale name");
}
__CLR_OR_THIS_CALL _Locinfo(int _Cat, const char* _Pch)
#ifndef _M_CEE_PURE
: _Lock(_LOCK_LOCALE)
#endif // !defined(_M_CEE_PURE)
{
if (_Pch) {
_Locinfo_ctor(this, _Cat, _Pch);
return;
}
_Xruntime_error("bad locale name");
}
__CLR_OR_THIS_CALL ~_Locinfo() noexcept {
_Locinfo_dtor(this);
}
_Locinfo& __CLR_OR_THIS_CALL _Addcats(int _Cat, const char* _Pch) { // add facets matching category mask and NTBS
if (_Pch) {
return _Locinfo_Addcats(this, _Cat, _Pch);
}
_Xruntime_error("bad locale name");
}
const char* __CLR_OR_THIS_CALL _Getname() const {
return _Newlocname._C_str();
}
_Collvec __CLR_OR_THIS_CALL _Getcoll() const {
return ::_Getcoll();
}
_Ctypevec __CLR_OR_THIS_CALL _Getctype() const {
return ::_Getctype();
}
_Cvtvec __CLR_OR_THIS_CALL _Getcvt() const {
return ::_Getcvt();
}
const lconv* __CLR_OR_THIS_CALL _Getlconv() const {
return localeconv();
}
_Timevec __CLR_OR_THIS_CALL _Gettnames() const {
return _Timevec(::_Gettnames());
}
const char* __CLR_OR_THIS_CALL _Getdays() const {
const char* _Ptr = ::_Getdays();
if (_Ptr) { // capture names and free allocated C string
const_cast<_Locinfo*>(this)->_Days = _Ptr;
_CSTD free(const_cast<char*>(_Ptr));
}
return !_Days._Empty() ? _Days._C_str()
: ":Sun:Sunday:Mon:Monday:Tue:Tuesday:Wed:Wednesday"
":Thu:Thursday:Fri:Friday:Sat:Saturday";
}
const char* __CLR_OR_THIS_CALL _Getmonths() const {
const char* _Ptr = ::_Getmonths();
if (_Ptr) { // capture names and free allocated C string
const_cast<_Locinfo*>(this)->_Months = _Ptr;
_CSTD free(const_cast<char*>(_Ptr));
}
return !_Months._Empty() ? _Months._C_str()
: ":Jan:January:Feb:February:Mar:March"
":Apr:April:May:May:Jun:June"
":Jul:July:Aug:August:Sep:September"
":Oct:October:Nov:November:Dec:December";
}
const char* __CLR_OR_THIS_CALL _Getfalse() const {
return "false";
}
const char* __CLR_OR_THIS_CALL _Gettrue() const {
return "true";
}
int __CLR_OR_THIS_CALL _Getdateorder() const {
return ::_Getdateorder();
}
_Timevec __CLR_OR_THIS_CALL _W_Gettnames() const {
return _Timevec(::_W_Gettnames());
}
const unsigned short* __CLR_OR_THIS_CALL _W_Getdays() const {
const wchar_t* _Ptr = ::_W_Getdays();
if (_Ptr) { // capture names and free allocated C string
const_cast<_Locinfo*>(this)->_W_Days = _Ptr;
_CSTD free(const_cast<wchar_t*>(_Ptr));
}
const wchar_t* _Ret;
if (_W_Days._Empty()) {
_Ret = L":Sun:Sunday:Mon:Monday:Tue:Tuesday:Wed:Wednesday:Thu:Thursday:Fri:Friday:Sat:Saturday";
} else {
_Ret = _W_Days._C_str();
}
return reinterpret_cast<const unsigned short*>(_Ret);
}
const unsigned short* __CLR_OR_THIS_CALL _W_Getmonths() const {
const wchar_t* _Ptr = ::_W_Getmonths();
if (_Ptr) { // capture names and free allocated C string
const_cast<_Locinfo*>(this)->_W_Months = _Ptr;
_CSTD free(const_cast<wchar_t*>(_Ptr));
}
const wchar_t* _Ret;
if (_W_Months._Empty()) {
_Ret = L":Jan:January:Feb:February:Mar:March:Apr:April:May:May:Jun:June"
L":Jul:July:Aug:August:Sep:September:Oct:October:Nov:November:Dec:December";
} else {
_Ret = _W_Months._C_str();
}
return reinterpret_cast<const unsigned short*>(_Ret);
}
_Locinfo(const _Locinfo&) = delete;
_Locinfo& operator=(const _Locinfo&) = delete;
private:
#ifdef _M_CEE_PURE
_EmptyLockit _Empty_lock; // to maintain same size
#else // ^^^ defined(_M_CEE_PURE) / !defined(_M_CEE_PURE) vvv
_Lockit _Lock; // thread lock, because global locale is altered
#endif // ^^^ !defined(_M_CEE_PURE) ^^^
_Yarn<char> _Days; // weekday names
_Yarn<char> _Months; // month names
_Yarn<wchar_t> _W_Days; // wide weekday names
_Yarn<wchar_t> _W_Months; // wide month names
_Yarn<char> _Oldlocname; // old locale name to revert to on destruction
_Yarn<char> _Newlocname; // new locale name for this object
};
template <class _Elem>
int __CRTDECL _LStrcoll(const _Elem* _First1, const _Elem* _Last1, const _Elem* _First2, const _Elem* _Last2,
const _Locinfo::_Collvec*) { // perform locale-specific comparison of _Elem sequences
for (; _First1 != _Last1 && _First2 != _Last2; ++_First1, ++_First2) {
if (*_First1 < *_First2) {
return -1; // [_First1, _Last1) < [_First2, _Last2)
} else if (*_First2 < *_First1) {
return +1; // [_First1, _Last1) > [_First2, _Last2)
}
}
return _First2 != _Last2 ? -1 : _First1 != _Last1 ? +1 : 0;
}
template <>
inline int __CRTDECL _LStrcoll(const char* _First1, const char* _Last1, const char* _First2, const char* _Last2,
const _Locinfo::_Collvec* _Vector) { // perform locale-specific comparison of char sequences
return _Strcoll(_First1, _Last1, _First2, _Last2, _Vector);
}
template <>
inline int __CRTDECL _LStrcoll(const wchar_t* _First1, const wchar_t* _Last1, const wchar_t* _First2,
const wchar_t* _Last2,
const _Locinfo::_Collvec* _Vector) { // perform locale-specific comparison of wchar_t sequences
return _Wcscoll(_First1, _Last1, _First2, _Last2, _Vector);
}
template <class _Elem>
size_t __CRTDECL _LStrxfrm(_Elem* _First1, _Elem* _Last1, const _Elem* _First2, const _Elem* _Last2,
const _Locinfo::_Collvec*) { // perform locale-specific transform of _Elems [_First1, _Last1)
const ptrdiff_t _Count = _Last2 - _First2;
if (_Count <= _Last1 - _First1) {
_CSTD memcpy(_First1, _First2, _Count * sizeof(_Elem));
}
return _Count;
}
template <>
inline size_t __CRTDECL _LStrxfrm(_Out_writes_(_Last1 - _First1) _Post_readable_size_(return) char* _First1,
_In_z_ char* _Last1, const char* _First2, const char* _Last2,
const _Locinfo::_Collvec* _Vector) { // perform locale-specific transform of chars [_First1, _Last1)
return _Strxfrm(_First1, _Last1, _First2, _Last2, _Vector);
}
template <>
inline size_t __CRTDECL _LStrxfrm(_Out_writes_(_Last1 - _First1) _Post_readable_size_(return) wchar_t* _First1,
_In_z_ wchar_t* _Last1, const wchar_t* _First2, const wchar_t* _Last2,
const _Locinfo::_Collvec* _Vector) { // perform locale-specific transform of wchar_ts [_First1, _Last1)
return _Wcsxfrm(_First1, _Last1, _First2, _Last2, _Vector);
}
_STD_END
#pragma pop_macro("new")
_STL_RESTORE_CLANG_WARNINGS
#pragma warning(pop)
#pragma pack(pop)
#endif // _STL_COMPILER_PREPROCESSOR
#endif // _XLOCINFO_
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