GBK utf8 ANSI Unicode Conversion

1. Convert GBK to utf8

String gbktoutf8 (const STD: string & strgbk)
{
String stroututf8 = "";
Wchar * str1;
Int n = multibytetowidechar (cp_acp, 0, strgbk. c_str (),-1, null, 0 );
Str1 = new wchar [N];
Multibytetowidechar (cp_acp, 0, strgbk. c_str (),-1, str1, N );
N = widechartomultibyte (cp_utf8, 0, str1,-1, null, 0, null, null );
Char * str2 = new char [N];
Widechartomultibyte (cp_utf8, 0, str1,-1, str2, N, null, null );
Stroututf8 = str2;
Delete [] str1;
Str1 = NULL;
Delete [] str2;
Str2 = NULL;
Return stroututf8;
}

2. Convert utf8 to GBK

String utf8togbk (const STD: string & strutf8)
{
Int Len = multibytetowidechar (cp_utf8, 0, strutf8.c _ STR (),-1, null, 0 );
Unsigned short * wszgbk = new unsigned short [Len + 1];
Memset (wszgbk, 0, Len * 2 + 2 );
Multibytetowidechar (cp_utf8, 0, (lpctstr) strutf8.c _ STR (),-1, wszgbk, Len );

Len = widechartomultibyte (cp_acp, 0, wszgbk,-1, null, 0, null, null );
Char * szgbk = new char [Len + 1];
Memset (szgbk, 0, Len + 1 );
Widechartomultibyte (cp_acp, 0, wszgbk,-1, szgbk, Len, null, null );
// Strutf8 = szgbk;
STD: String strtemp (szgbk );
Delete [] szgbk;
Delete [] wszgbk;
Return strtemp;

}

// Conversion from UTF-8 to gb2312
Char * u2g (const char * utf8)
{
Int Len = multibytetowidechar (cp_utf8, 0, utf8,-1, null, 0 );
Wchar_t * wstr = new wchar_t [Len + 1];
Memset (wstr, 0, Len + 1 );
Multibytetowidechar (cp_utf8, 0, utf8,-1, wstr, Len );
Len = widechartomultibyte (cp_acp, 0, wstr,-1, null, 0, null, null );
Char * STR = new char [Len + 1];
Memset (STR, 0, Len + 1 );
Widechartomultibyte (cp_acp, 0, wstr,-1, STR, Len, null, null );
If (wstr) Delete [] wstr;
Return STR;
}

// Gb2312 to UTF-8 Conversion
Char * g2u (const char * gb2312)
{
Int Len = multibytetowidechar (cp_acp, 0, gb2312,-1, null, 0 );
Wchar_t * wstr = new wchar_t [Len + 1];
Memset (wstr, 0, Len + 1 );
Multibytetowidechar (cp_acp, 0, gb2312,-1, wstr, Len );
Len = widechartomultibyte (cp_utf8, 0, wstr,-1, null, 0, null, null );
Char * STR = new char [Len + 1];
Memset (STR, 0, Len + 1 );
Widechartomultibyte (cp_utf8, 0, wstr,-1, STR, Len, null, null );
If (wstr) Delete [] wstr;
Return STR;
}
Void atow (lpstr psz, lptstr & pwsz)
{
Assert (psz! = NULL );
Const int size = multibytetowidechar (cp_acp, 0, psz,-1, null, 0 );
Assert (size> 0 );
Pwsz = (lpwstr) malloc (sizeof (wchar) * size );
Assert (pwsz! = NULL );
Memset (pwsz, 0, sizeof (wchar) * size );
Verify (multibytetowidechar (cp_acp, 0, psz,-1, pwsz, size )! = 0 );
}
Void wtoa (lpcwstr pwsz, lpstr & m_psz)
{
Assert (pwsz! = NULL );
Const int size = widechartomultibyte (cp_acp, 0, pwsz,-1,
Null, 0, null, null );
Assert (size> 0 );
M_psz = (lpstr) malloc (sizeof (char) * size );
Assert (m_psz! = NULL );
Widechartomultibyte (cp_acp, 0, pwsz,-1, m_psz, size, null, null );
}