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#ifndef _PYODBCSQLWCHAR_H
#define _PYODBCSQLWCHAR_H

class SQLWChar
{
    // An object designed to convert strings and Unicode objects to SQLWCHAR, hold the temporary buffer, and delete it
    // in the destructor.

private:
    SQLWCHAR* pch;
    Py_ssize_t len;
    bool owns_memory;

public:
    SQLWChar()
    {
        pch = 0;
        len = 0;
        owns_memory = false;
    }

    SQLWChar(PyObject* o);

    bool Convert(PyObject* o);

    void Free();

    ~SQLWChar()
    {
        Free();
    }

    void dump();

    operator SQLWCHAR*() { return pch; }
    operator const SQLWCHAR*() const { return pch; }
    operator bool() const { return pch != 0; }
    Py_ssize_t size() const { return len; }

    SQLWCHAR* operator[] (Py_ssize_t i)
    {
        I(i <= len); // we'll allow access to the NULL?
        return &pch[i];
    }
        
    const SQLWCHAR* operator[] (Py_ssize_t i) const
    {
        I(i <= len); // we'll allow access to the NULL?
        return &pch[i];
    }
};

// The size of a SQLWCHAR.
extern Py_ssize_t SQLWCHAR_SIZE;

// Allocate a new Unicode object, initialized from the given SQLWCHAR string.
PyObject* PyUnicode_FromSQLWCHAR(const SQLWCHAR* sz, Py_ssize_t cch);

SQLWCHAR* SQLWCHAR_FromUnicode(const Py_UNICODE* pch, Py_ssize_t len);

#endif // _PYODBCSQLWCHAR_H
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