Split function with std::List

In Addtion to my earlier split function a more optimized method using the std::List.

list splitList(CString str,char delimiter)

{

long len=0;

if(str.IsEmpty())

return NULL;

len=str.GetLength();

list st;

int c=0;

while(1)

{

int pos=str.Find(delimiter);

if(pos!=-1)

{

st.push_back(str.Left(pos));

str.Delete(0,pos+1);

}

else

{

st.push_back(str);

break;

}

c++;

}

return st;

}