ATL::CA2WEX< t_nBufferLength > Class Template Reference

#include <atlconv.h>

Public Member Functions
	CA2WEX (_In_z_ LPCSTR psz)
	CA2WEX (_In_z_ LPCSTR psz, _In_ UINT nCodePage)
	~CA2WEX () noexcept
_Ret_z_	operator LPWSTR () const noexcept

Public Attributes
LPWSTR	m_psz
wchar_t	m_szBuffer [t_nBufferLength]

Private Member Functions
	CA2WEX (_In_ const CA2WEX &) noexcept=delete
CA2WEX &	operator= (_In_ const CA2WEX &) noexcept=delete
void	Init (_In_z_ LPCSTR psz, _In_ UINT nCodePage)

Detailed Description

template<int t_nBufferLength = 128>
class ATL::CA2WEX< t_nBufferLength >

Definition at line 189 of file atlconv.h.

Constructor & Destructor Documentation

CA2WEX() [1/3]

template<int t_nBufferLength = 128>

ATL::CA2WEX< t_nBufferLength >::CA2WEX ( _In_z_ LPCSTR  psz )

inline

Definition at line 195 of file atlconv.h.

    {
        Init(psz, CP_ACP);
    }

CA2WEX() [2/3]

template<int t_nBufferLength = 128>

ATL::CA2WEX< t_nBufferLength >::CA2WEX ( _In_z_ LPCSTR  psz, _In_ UINT  nCodePage  )

inline

Definition at line 200 of file atlconv.h.

    {
        Init(psz, nCodePage);
    }

~CA2WEX()

template<int t_nBufferLength = 128>

ATL::CA2WEX< t_nBufferLength >::~CA2WEX ( )

inlinenoexcept

Definition at line 205 of file atlconv.h.

    {
        if (m_psz != m_szBuffer)
            free(m_psz);
    }

CA2WEX() [3/3]

template<int t_nBufferLength = 128>

ATL::CA2WEX< t_nBufferLength >::CA2WEX ( _In_ const CA2WEX< t_nBufferLength > &  )

privatedeletenoexcept

Member Function Documentation

Init()

template<int t_nBufferLength = 128>

void ATL::CA2WEX< t_nBufferLength >::Init ( _In_z_ LPCSTR  psz, _In_ UINT  nCodePage  )

inlineprivate

Definition at line 221 of file atlconv.h.

    {
        if (!psz)
        {
            m_psz = NULL;
            m_szBuffer[0] = 0;
            return;
        }
 
#if 1
        int cchMax = lstrlenA(psz) + 1; // This is 3 times faster
#else
        int cchMax = MultiByteToWideChar(nCodePage, 0, psz, -1, NULL, 0); // It's slow
#endif
        if (cchMax <= (int)_countof(m_szBuffer))
        {
            // Use the static buffer
            m_psz = m_szBuffer;
            cchMax = _countof(m_szBuffer);
        }
        else
        {
            // Allocate a new buffer
            m_szBuffer[0] = 0;
            m_psz = (LPWSTR)malloc(cchMax * sizeof(WCHAR));
            if (!m_psz)
                AtlThrow(E_OUTOFMEMORY);
        }
 
        MultiByteToWideChar(nCodePage, 0, psz, -1, m_psz, cchMax);
        m_psz[cchMax - 1] = 0;
    }

operator LPWSTR()

template<int t_nBufferLength = 128>

_Ret_z_ ATL::CA2WEX< t_nBufferLength >::operator LPWSTR ( ) const

inlinenoexcept

Definition at line 211 of file atlconv.h.

    {
        return m_psz;
    }

operator=()

template<int t_nBufferLength = 128>

CA2WEX & ATL::CA2WEX< t_nBufferLength >::operator= ( _In_ const CA2WEX< t_nBufferLength > &  )

privatedeletenoexcept

Member Data Documentation

m_psz

template<int t_nBufferLength = 128>

LPWSTR ATL::CA2WEX< t_nBufferLength >::m_psz

Definition at line 192 of file atlconv.h.

Referenced by ATL::CA2WEX< t_nBufferLength >::Init(), ATL::CA2WEX< t_nBufferLength >::operator LPWSTR(), START_TEST(), and ATL::CA2WEX< t_nBufferLength >::~CA2WEX().

m_szBuffer

template<int t_nBufferLength = 128>

wchar_t ATL::CA2WEX< t_nBufferLength >::m_szBuffer[t_nBufferLength]

Definition at line 193 of file atlconv.h.

Referenced by ATL::CA2WEX< t_nBufferLength >::Init(), START_TEST(), and ATL::CA2WEX< t_nBufferLength >::~CA2WEX().

---

The documentation for this class was generated from the following file:

• sdk/lib/atl/atlconv.h