CString存到unsigned char数组中出错了

[南空]

unsigned char CString2Hex(CString var)
{
unsigned char len = var.GetLength();
unsigned char res=0;
unsigned char tmp=0;
char f[2];
for(int i = len;i>0;i--)
{

memset(f,0,2);
sprintf(f,"%c",var.GetAt(len-i));
tmp = atoi(f)<<(4*(i-1));
res+=tmp;
}
return res;
}
这是VC中的一个全局函数，当调用它时
unsigned char Data[16]="0";
CString filestr;
for(int i=0;i<15;i++)
{
Data[i]=CString2Hex(filestr.Mid(i*2,2));
}
问题：
当filestr为498496584244854854564185493854时，正确得到Data[0]=49,Data[1]=84......
但是当filestr为CDABDCABDCEBDCEDABDCEABCEDABED时，得不到正确数据？？？？
请高手指教，谢谢了。

[luciferisnotsatan]

用var.GetBuffer得到c风格的字符串，用完后记得ReleaseBuffer

[delphiwcdj]

试试
int nLen=filestr.GetLength();
unsigned char *szBuffer = new unsigned char[nLen+1];
strcpy(szBuffer, (unsigned char*)filestr.GetBuffer(0));

[luciferisnotsatan]

void cnvt(CString in, wchar_t *out)
{
	size_t len = in.GetLength();
	TCHAR tmp[5] = {0};
	TCHAR *endPtr;
	TCHAR *p = in.GetBuffer();
	int i,j;

	for(i = 0,j=0; i < len; i+=4,j++)
	{

		wcsncpy(tmp,p+i,4);
        out[j] = wcstol(tmp,&endPtr,16);
	}
	in.ReleaseBuffer();
    out[j] = '\0';
}

过去写的一个宽字节版本，lz自己改下

[luciferisnotsatan]

和你要做的不太一样。和你的是相反的操作。

[Quote=引用 3 楼 luciferisnotsatan 的回复:]

C/C++ code
void cnvt(CString in, wchar_t *out)
{
size_t len = in.GetLength();
TCHAR tmp[5] = {0};
TCHAR *endPtr;
TCHAR *p = in.GetBuffer();
int i,j;

for(i = 0,j=0; i < len; ……
[/Quote]

[赵4老师]

http://blog.csdn.net/pizi0475/archive/2010/03/04/5346708.aspx