Conversion between wchar [] and char []

I searched the internet for nearly an hour and did not find the appropriate transfer type code. I wrote it in 10 minutes, and I was a little unconfident. Lazy !! Let's post it and share it with you to save your time.

Extern "C"
{

Void _ declspec (dllexport) W2C (wchar * pwstr, char * CSTR)
{
Char * pwssrc = (char *) pwstr;

Ulong length = 0;

While (1)
{
If (* pwssrc! = 0x00 & * (pwssrc + 1) = 0x00)
{
CSTR [length ++] = * pwssrc;

Pwssrc + = 2;

} Else
{
CSTR [length] = 0x00;

Break;
}
}

}

Void _ declspec (dllexport) c2w (char * CSTR, wchar * wstr)
{
 
Char * pcstr = CSTR;

Wchar * pwcstr = wstr;

Ulong I = 0;
Ulong J = 0;

While (1)
{
If (pcstr [I]! = 0x00)
{
(Char *) pwcstr) [J] = pcstr [I];
(Char *) pwcstr) [++ J] = 0x00;

I ++;
J ++;

} Else
{
(Char *) pwcstr) [J] = 0x00;
(Char *) pwcstr) [++ J] = 0x00;

Break;
}
}
 
}

}

The preceding method has limitations when used recently. The strings cannot contain Chinese characters.

The improved version is as follows:

Namespace charobj
{
//--------------------------------
// Convert multiple character sets to Unicode wide character sets
//--------------------------------
Void mutiltowide (char szmutilsrcdata [], DWORD dwmutilsrcdatabufsize,
Wchar lpwidecharstr [], DWORD dwwidecharbufsize)
{

Multibytetowidechar (cp_acp, 0,
Szmutilsrcdata,
Dwmutilsrcdatabufsize,
Lpwidecharstr,
Dwwidecharbufsize );
}

//--------------------------------
// Convert Unicode wide character set to multi-Character Set
//--------------------------------
Void widetomutil (wchar lpwidecharstr [], DWORD dwwidecharbufsize,
Char szmutilsrcdata [], DWORD dwmutilsrcdatabufsize)
{

Widechartomultibyte (cp_acp, // code page
0, // performance and mapping flags
Lpwidecharstr, // wide-character string
Dwwidecharbufsize, // Number of chars in string
Szmutilsrcdata, // buffer for New String
Dwmutilsrcdatabufsize,
Null,
Null );
}

 

}

 

 

 

C Runtime Library Standard Functions

Mbstowcs

Wcstombs