Deliver/include/Log4CPP8.0/Common.Include/String.WString.hpp

#pragma once


#include <string>
#include <locale>
#include <functional>


#include "String.StringView.hpp"


#ifdef DSTRING_EXPORTS
#define WSTRING_API _declspec(dllexport)
#else
#define WSTRING_API _declspec(dllimport)
#endif

#ifdef _DSTRING_STATIC_
#undef WSTRING_API
#define WSTRING_API
#endif



#ifndef DSTRING_EXPORTS

#ifdef _WIN64

#ifdef _DEBUG
#pragma comment (lib, "ECOM.Utility.DString64D.lib") 
#else
#pragma comment (lib, "ECOM.Utility.DString64.lib") 
#endif

#else	//	X86

#endif

#endif  //  DSTRING_EXPORTS



#ifndef _OLEAUTO_H_
typedef LPWSTR BSTR;// must (semantically) match typedef in oleauto.h
#endif


namespace ECOM::Utility::String
{
	class DString;

//	using size_type = unsigned int;  // 用 unsigned int 比较好, 但是会造成很多编译警告
	using size_type = int;

	//-----------------------------------------------------------------------------
	//		WStringData
	//-----------------------------------------------------------------------------
	namespace
	{
		struct WStringData
		{
			long	  nRefs;			// reference count
			size_type nDataLength;		// 字符数, length of data (including terminator)
			size_type nAllocLength;		// length of allocation
			// wchar_t data[nAllocLength]

			wchar_t * data ()				// wchar_t* to managed data
			{
				return (wchar_t *) (this + 1);
			}
		};
	}


	//-----------------------------------------------------------------------------
	//		WString
	//-----------------------------------------------------------------------------

	class WSTRING_API WString
	{
	public:
		using value_type = WString;

	public:
		WString ();
		WString (const wchar_t * lpsz) = delete;
		WString (const wchar_t * lpsz, int nCount);
		WString (const BSTR bstr) = delete;

		explicit WString (const DString & From);
		explicit WString (const DStringView & From);

		WString (const std::wstring & Src);

		WString (const WString & Src);
		WString (WString && Src);

	public:
		~WString ();

	public:
	//	返回的是字符数, 而不是真正的长度 ! 真正的长度要乘以 2
		size_type  GetLength ()      const;
		size_type  GetByteLength ()  const { return GetLength () << 1; }
		size_type  GetAllocLength () const { return GetData ()->nAllocLength; }
		size_type  size ()           const { return GetLength (); }

	public:
		bool empty () const { return IsEmpty (); }
		bool IsEmpty () const { return GetLength () <= 0; }
		void Clear ();
		void Release ();

	public:
		wchar_t GetAt (int nIndex) const
		{
			return m_pchData [nIndex];
		}

		wchar_t operator [] (int nIndex) const { return GetAt (nIndex); }

		void SetAt (int nIndex, wchar_t ch);

		int  Count (wchar_t ch) const;
		int  Count (const WStringView & Sub) const;

	protected:
		size_t _Hash () const;

	public:
		WString & operator = (const wchar_t *) = delete;
		WString & operator = (const WString & S);
		WString & operator = (const DString & S);
		WString & operator = (wchar_t ch);
		WString & operator = (const DStringView & S);
		WString & operator = (const WStringView & S) { return Assign (S); }
		WString & operator = (WString && S);
		WString & operator = (const std::wstring & S) { AssignCopy (static_cast <int> (S.size ()), S.c_str ()); return *this; }
		WString & operator = (std::initializer_list <WStringView> lst)
		{
			return Assign (lst);
		}

	public:
		// string concatenation
		WString & Append (const WString & S)
		{
			ConcatInPlace (S.GetData ()->nDataLength, S.m_pchData);
			return *this;
		}

		WString & Append (const DString & S)
		{
			return Append (WString (S));
		}

		WString & Append (wchar_t ch)
		{
			ConcatInPlace (1, &ch);
			return *this;
		}

		WString & Append (const DStringView & S);
		WString & Append (const WStringView & S);
		WString & Append (const std::wstring_view & S);
		WString & Append (const std::wstring & S)
		{
			ConcatInPlace (static_cast <int> (S.length ()), S.c_str ());
			return *this;
		}

		WString & Append (const char *) = delete;  // 改用 L"..."_sv 代替
		WString & Append (const wchar_t *) = delete;  // 改用 L"..."_sv 代替

		WString & operator += (const WString & S)	     { return Append (S); }
		WString & operator += (wchar_t ch)				 { return Append (ch); }
		WString & operator += (const DStringView S)      { return Append (S); }
		WString & operator += (const WStringView S)	     { return Append (S); }
		WString & operator += (const DString & S)	     { return Append (S); }
//		WString & operator += (const std::wstring & S)   { return Append (S); }
		WString & operator += (std::initializer_list <WStringView> lst) { return Append (lst); }

//		WString & operator += (const char *) = delete;  // 改用 L"..."_sv 代替
//		WString & operator += (const wchar_t *) = delete;  // 改用 L"..."_sv 代替

		WString & operator << (const DString & S)        { return Append (WString (S)); }
		WString & operator << (const DStringView & S)	 { return Append (S); }
		WString & operator << (const WStringView & S)    { return Append (S); }
		WString & operator << (const WString & S)	     { return Append (S); }
		WString & operator << (wchar_t ch)				 { return Append (ch); }
		WString & operator << (short v)					 { return Append (From (v)); }
		WString & operator << (int v)					 { return Append (From (v)); }
		WString & operator << (long v)					 { return Append (From (v)); }
		WString & operator << (UINT16 v)				 { return Append (From (v)); }
		WString & operator << (UINT32 v)				 { return Append (From (v)); }
		WString & operator << (unsigned long v)			 { return Append (From (v)); }
//		WString & operator << (const std::wstring & S)   { return Append (S); }

		WString & operator << (std::initializer_list <WStringView> lst) { return Append (lst); }

//<		WString & operator << (const char *) = delete;  // 改用 L"..."_sv 代替
//		WString & operator << (const wchar_t *) = delete;  // 改用 L"..."_sv 代替
//		不废除了, 某些强制赋值还是需要的.
//		如果不做提前声明, 编译时发生 C2678: 无法找到匹配的运算符
//		2023-11-14
//>

	public:
		// string comparison

		int  Compare (const wchar_t * lpsz) const;
		int  CompareNoCase (const wchar_t * lpsz) const;

		int  Compare (const WStringView & With) const;
		int  Compare (const WString & With) const;

		//<		增加命名空间后, std::map <DString, ...> 就需要如下内置比较函数
		bool operator == (const WString & with) const { return Compare (with) == 0; }
		bool operator != (const WString & with) const { return Compare (with) != 0; }
		bool operator <  (const WString & with) const { return Compare (with) < 0; }
		bool operator >  (const WString & with) const { return Compare (with) > 0; }
		bool operator <= (const WString & with) const { return Compare (with) <= 0; }
		bool operator >= (const WString & with) const { return Compare (with) >= 0; }

	public:
		WString Mid (int nFirst, int nCount) const;
		WString Mid (int nFirst) const;
		WString Left (int nCount) const;
		WString Right (int nCount) const;

	public:
		void MakeUpper ();
		void MakeLower ();
		void MakeReverse ();

	public:
		int  TrimLeft ();
		int  TrimRight ();

		void TrimRight (wchar_t chTarget);
		void TrimRight (const WStringView & szTargets);
		void TrimLeft  (wchar_t chTarget);
		void TrimLeft  (const WStringView & szTargets);

		WString	Trim () const { WString copy = *this; copy.TrimRight (); copy.TrimLeft (); return copy; }

	public:
	//	用指定的字符填充左边/右边/中间, 直到总长度达到指定值为止
		void JustLeft   (int ToLength, wchar_t ch = ' ');
		void JustRight  (int ToLength, wchar_t ch = ' ');
		void JustCenter (int ToLength, wchar_t ch = ' ');

	public:
		int  Replace (wchar_t chOld, wchar_t chNew);
		int  Replace (const WString & Old, const WStringView & New);
		int  Replace (const WStringView & Old, const WStringView & New);

		int  Remove (const WStringView & Sub);
		int  Remove (wchar_t chRemove);
		int  RemoveSpace ();
		int  RemovePunctuation ();
		int  RemoveControl ();
		// 用谓词函数来判断单个字符是否应该删除, 如果返回 true 就删除
		int  Remove (std::function <bool (int)> pred);

		int  NCRemove (const WStringView & lpszSub);
		int  NCRemove (wchar_t chRemove);

		void Repeat (wchar_t ch, int n);
		void Repeat (const WStringView & S, int n);

	public:
		// Pred 返回 true, 表明找到, 否则下一个字符
		using tPred = std::function <bool (wchar_t ch)>;

	public:
		int  Find (wchar_t ch, int nStart = 0) const;
		int  Find (tPred && pred, int nStart = 0) const;
		int  Find (const WStringView & Sub, int nStart = 0) const;
		int  Find (const WString & Sub, int nStart = 0) const;

		// find at right
		int  ReverseFind (wchar_t ch, int nStart = 0) const;
		int  ReverseFind (const WStringView & Sub, int nStart = 0) const;

		bool StartWith (const WStringView & Sub, int iStart = 0) const;
		bool EndWith   (const WStringView & Sub, int iStart = 0) const;

		bool StartWith (const WString & Sub, int iStart = 0) const { return StartWith (Sub.To <WStringView> (), iStart); }
		bool EndWith   (const WString & Sub, int iStart = 0) const { return EndWith   (Sub.To <WStringView> (), iStart); }

		bool StartWith (wchar_t ch, int iStart = 0) const;
		bool EndWith   (wchar_t ch, int iStart = 0) const;

		int  NCFind (wchar_t ch) const;
		int  NCFind (const WStringView & Sub) const;

	public:
		using tvCallback = std::function <void (CV_WString & sub)>;
		// 如果回调返回 true, 则继续, 否则停止
		using tbCallback = std::function <bool (int Index, CV_WString & sub)>;

		int  Split (wchar_t  ch  , tvCallback && onFound, int start = 0) const;
		int  Split (tPred && pred, tvCallback && onFound, int start = 0) const;

		int  SplitIf (wchar_t  ch  , tbCallback && onFound, int start = 0) const;
		int  SplitIf (tPred && pred, tbCallback && onFound, int start = 0) const;

		// 分割成列表
		auto SplitTo (wchar_t  ch  , int start = 0) const -> std::list <WString>;
		auto SplitTo (tPred && pred, int start = 0) const -> std::list <WString>;

		// 分割成数组, 最多 Max 个
		auto SplitMax (int Max, wchar_t  ch  , int start = 0) const -> std::vector <WString>;
		auto SplitMax (int Max, tPred && pred, int start = 0) const -> std::vector <WString>;

		// 返回指定 Index 的某一个, 如果找不到: 当 Index=0 时返回本串, 否则返回空串
		auto SplitOne (int atIndex, wchar_t  ch  , int start = 0) const ->WString;
		auto SplitOne (int atIndex, tPred && pred, int start = 0) const ->WString;

	//	Cast
	public:
		operator const wchar_t *    () const { return m_pchData; }
		const wchar_t * constBuffer () const { return m_pchData; }
		wchar_t * data              () const { return m_pchData; }
		const wchar_t * c_str       () const { return m_pchData; }

		DString ToDString () const;
		DString ToDString (UINT CodePage) const;
		DString ToDString (const char * LocName) const;
		DString ToDString (const _locale_t Loc) const;

		//	explicit operator const DString () const { return ToDString (); }
		operator const DString () const = delete;

		operator bool () const = delete;

		//	用于自动判别类型
	public:
		template <typename T> bool Is () const { return false; }
		template <> bool Is <WString> () const { return true; }
		template <> bool Is <DString> () const { return false; }

	public:
		static WString From (const int i);
		static WString From (const long i);
		static WString From (const unsigned int u);
		static WString From (const unsigned long u);
		static WString From (const __int64 i);
		static WString From (const unsigned __int64 u);
		static WString From (const double d);
		static WString From (const std::wstring_view & Src);
		static WString From (CV_WString & Src) { return WString (Src); }
		static WString From (const WString & Src) { return WString (Src); }
		static WString From (const char * Src) { return FromCodePage (Src, CP_ACP); }
		static WString From (const wchar_t * lpsz)  { return (CV_WString) lpsz; }

		static WString FromCodePage (const DString & from, UINT CodePage);
		static WString FromCodePage (const std::string & from, UINT CodePage);
		static WString FromCodePage (const std::string_view & from, UINT CodePage);
		static WString FromCodePage (const char * from, UINT CodePage);
		static WString FromCodePage (const char * from, int len, UINT CodePage);

		static WString FromLocale (const DString & from, const char * LocName);
		static WString FromLocale (const char * from, const char * LocName);
		static WString FromLocale (const char * from, int len, const char * LocName);

		static WString FromLocale (const DString & from, const _locale_t Loc);
		static WString FromLocale (const char * from, const _locale_t Loc);
		static WString FromLocale (const char * from, int len, const _locale_t Loc);
	
		// repeat a single character
		static WString FromRepeat (wchar_t ch, int nRepeat);

	protected:
		void FormatV (const wchar_t * lpszFormat, va_list argList);
		void AppendFormatV (const wchar_t * lpszFormat, va_list argList);

	protected:
		//	对于字符串,代码中很容易忘记 L 前缀, 导致传入的是 char *, 而期望的是 wchar_t *
		//	比如, 正确的写法是: Format ("%s", L"abcd"); 但是很容易写成 Format ("%s", "abcd");
		//	为了避免出现这种 BUG, 把这几个函数改成 protected
		static WString FromFormat (const wchar_t * szFormat, ...);
		void Format (const wchar_t * lpszFormat, ...);
		void AppendFormat (const wchar_t * lpszFormat, ...);

	public:
		// get pointer to modifiable buffer at least as long as nMinBufLength
		wchar_t * GetBuffer (int nMinBufLength);
		// release buffer, setting length to nNewLength (or to first nul if -1)
		void ReleaseBuffer (int nNewLength = -1);
		// get pointer to modifiable buffer exactly as long as nNewLength
		wchar_t * GetBufferSetLength (int nNewLength);

		void Reserve (int nMinBufLength) { GetBuffer (nMinBufLength); }
		void reserve (int nMinBufLength) { GetBuffer (nMinBufLength); }

	public:
		double	Double ()	const	{ return _wtof (m_pchData); }
		int		Int ()		const	{ int  i = _wtoi (m_pchData); if (i) return i;  return wcstol (m_pchData, NULL, 16); }
		long	Long ()		const	{ long l = _wtol (m_pchData); if (l) return l;  return wcstol (m_pchData, NULL, 16); }
		wchar_t	Char ()		const	{ return m_pchData[0]; }
		bool	Bool ()		const;

		__int64	Int64 ()	const	{ __int64 i = _wtoi64 (m_pchData); if (i) return i;  return _wcstoi64 (m_pchData, NULL, 16); }

		template <typename T> T To () const = delete;
		template <> int     To () const { return Int (); }
		template <> double  To () const { return Double (); }
		template <> float	To () const { return (float) Double (); }
		template <> long    To () const { return Long (); }
		template <> bool    To () const { return Bool (); }
		template <> __int64 To () const { return Int64 (); }
		template <> unsigned int     To () const { return Int (); }
		template <> unsigned __int64 To () const { return Int64 (); }
		template <> unsigned long    To () const { return Long (); }
		template <> WString To () const { return *this; }
//		template <> DString To () const { return this->ToDString (); }
		template <> std::wstring To () const { return std::wstring { m_pchData, static_cast <std::string::size_type> (GetLength ()) }; }
		template <> std::wstring_view To () const { return std::wstring_view { m_pchData, static_cast <std::wstring_view::size_type> (GetLength ()) }; }

	public:  // 与 StringView 的转换,构造,赋值等
		WString (const WStringView & Src);
		// WString (const std::wstring_view & Src);

		// 从 DStringView 显式 生成 WString, 需要程序员指定, 以明示: 这种构造是有代价的
		static WString From (const StringView & Src);

		operator WStringView () const noexcept;
		operator std::wstring_view () const noexcept;

		template <> WStringView To () const;
		template <> const WStringView To () const;

		WString & Assign (const WStringView & _Right);
		WString & Assign (const std::wstring_view & _Right);

		WString & Append (std::initializer_list <WStringView> lst);
		WString & Append (std::initializer_list <std::wstring_view> lst);
		WString & Append (std::initializer_list <const wchar_t *> lst);

		WString & Assign (std::initializer_list <std::wstring_view> lst);
		WString & Assign (std::initializer_list <WStringView> lst);
		WString & Assign (std::initializer_list <const wchar_t *> lst);

		// 万一编译器警告: 调用不明确, 就用模板函数显式告诉编译器
		template <typename T> static WString From (std::initializer_list <T> lst)  { WString rc; rc.Assign (lst); return rc; }
		static WString From (std::initializer_list <WStringView> lst)              { WString rc; rc.Assign (lst); return rc; }
		static WString From (std::initializer_list <std::wstring_view> lst)        { WString rc; rc.Assign (lst); return rc; }
		static WString From (std::initializer_list <const wchar_t *> lst)          { WString rc; rc.Assign (lst); return rc; }

	protected:
		static int __cdecl GetFormattedLength (const wchar_t * pszFormat, va_list argList);
		static int __cdecl VFormat (wchar_t * lpzBuffer, const wchar_t * pszFormat, va_list argList);

	public:
		// release memory allocated to but unused by string
		void FreeExtra ();

	protected:
		wchar_t * m_pchData;   // pointer to ref counted string data

		WStringData * GetData() const
		{
			return ((WStringData *) m_pchData)-1; 
		}

		bool IsNil () const;  // 用来判断 m_pchData 是否等于 WStringPchNil

		void Init ();

		void AllocCopy (WString& dest, int nCopyLen, int nCopyIndex, int nExtraLen) const;
		void AllocBuffer (int Len);
		void AssignCopy (int Len, const wchar_t * S);
		void ConcatCopy (int L1, const wchar_t * S1, int L2, const wchar_t * S2);
		void ConcatInPlace (int Len, const wchar_t * S);
		void CopyBeforeWrite ();
		void AllocBeforeWrite (int nLen);

		// 拷贝赋值
		WString & Assign (const WString & Src);

		void MoveAssign (WString & Src);
		void MoveAssign (WString && Src);

		static void Release (WStringData * pData);
		static void FreeData (WStringData * pData);
	};


}


namespace eSTR = ECOM::Utility::String;

WSTRING_API eSTR::WString operator + (const eSTR::WString & S1, const eSTR::DString & S2);
WSTRING_API eSTR::WString operator + (const eSTR::DString & S1, const eSTR::WString & S2);

WSTRING_API eSTR::WString operator + (const eSTR::WString & S1, const eSTR::WString & S2);
WSTRING_API eSTR::WString operator + (const eSTR::WString & S, wchar_t ch);
WSTRING_API eSTR::WString operator + (const eSTR::WString & S1, const eSTR::WStringView & S2);

WSTRING_API eSTR::WString operator + (const eSTR::WStringView & S1, const eSTR::WString & S2);
WSTRING_API eSTR::WString operator + (const eSTR::WStringView & S1, wchar_t ch);

WSTRING_API eSTR::WString operator + (wchar_t ch, const eSTR::WString & S);

WSTRING_API eSTR::WString operator + (const eSTR::WString & S1, const std::wstring_view & S2);
WSTRING_API eSTR::WString operator + (const std::wstring_view & S1, const eSTR::WString & S2);
WSTRING_API eSTR::WString operator + (const std::wstring_view & S1, wchar_t ch);
WSTRING_API eSTR::WString operator + (const eSTR::WString & S1, const std::wstring & S2);
WSTRING_API eSTR::WString operator + (const std::wstring & S1, const eSTR::WString & S2);

WSTRING_API eSTR::WString operator + (const eSTR::WStringView & S1, const eSTR::WStringView & S2);



// Compare helpers

WSTRING_API inline bool operator == (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) == 0; }
WSTRING_API inline bool operator != (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) != 0; }
WSTRING_API inline bool operator <  (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) < 0; }
WSTRING_API inline bool operator >  (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) > 0; }
WSTRING_API inline bool operator <= (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) <= 0; }
WSTRING_API inline bool operator >= (const eSTR::WString & s1, const eSTR::WStringView s2) { return s1.Compare (s2) >= 0; }

#if 1
inline bool operator == (const eSTR::WString & s1, const wchar_t * s2) = delete;
inline bool operator != (const eSTR::WString & s1, const wchar_t * s2) = delete;
inline bool operator <  (const eSTR::WString & s1, const wchar_t * s2) = delete;
inline bool operator >  (const eSTR::WString & s1, const wchar_t * s2) = delete;
inline bool operator <= (const eSTR::WString & s1, const wchar_t * s2) = delete;
inline bool operator >= (const eSTR::WString & s1, const wchar_t * s2) = delete;
#else
WSTRING_API inline bool operator == (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) == 0; }
WSTRING_API inline bool operator != (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) != 0; }
WSTRING_API inline bool operator <  (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) < 0; }
WSTRING_API inline bool operator >  (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) > 0; }
WSTRING_API inline bool operator <= (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) <= 0; }
WSTRING_API inline bool operator >= (const eSTR::WString & s1, const wchar_t * s2) { return s1.Compare (s2) >= 0; }
#endif


WSTRING_API inline bool operator == (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) == 0; }
WSTRING_API inline bool operator != (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) != 0; }
WSTRING_API inline bool operator <  (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) > 0; }
WSTRING_API inline bool operator >  (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) < 0; }
WSTRING_API inline bool operator <= (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) >= 0; }
WSTRING_API inline bool operator >= (const eSTR::WStringView & s1, const eSTR::WString & s2) { return s2.Compare (s1) <= 0; }


#if 1
inline bool operator == (const wchar_t * s1, const eSTR::WString & s2) = delete;
inline bool operator != (const wchar_t * s1, const eSTR::WString & s2) = delete;
inline bool operator <  (const wchar_t * s1, const eSTR::WString & s2) = delete;
inline bool operator >  (const wchar_t * s1, const eSTR::WString & s2) = delete;
inline bool operator <= (const wchar_t * s1, const eSTR::WString & s2) = delete;
inline bool operator >= (const wchar_t * s1, const eSTR::WString & s2) = delete;
#else
WSTRING_API inline bool operator == (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) == 0; }
WSTRING_API inline bool operator != (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) != 0; }
WSTRING_API inline bool operator <  (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) > 0; }
WSTRING_API inline bool operator >  (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) < 0; }
WSTRING_API inline bool operator <= (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) >= 0; }
WSTRING_API inline bool operator >= (const wchar_t * s1, const eSTR::WString & s2) { return s2.Compare (s1) <= 0; }
#endif



template <>
struct std::hash <eSTR::WString>
{
	size_t operator() (const wchar_t * pc) const noexcept
	{
		auto len = wcslen (pc);
		return std::_Hash_array_representation (pc, len);
	}

	size_t operator() (const eSTR::WString & from) const noexcept
	{
		auto pc  = from.constBuffer ();
		auto len = from.GetLength ();
		return std::_Hash_array_representation (pc, len);
	}
};




#include "Hash.String.hpp"

//< 针对 WString 的 Hash. 目的是避免编译器的错误: 重载函数调用不明确
namespace ECOM::Utility
{
	inline constexpr size_t Hash (const String::WString & SV)
	{
		return (Hash (SV.To <String::WStringView> ()));
	}
}