// typedef CStringT<TCHAR, StrTraitATL<TCHAR, ChTraitsCRT<TCHAR>>> CAtlString; CAtlString str(_T("cabbage")); CAtlString res = str.SpanIncluding(_T("abc")); ASSERT(res == _T("cabba")); res = str.SpanIncluding(_T("xyz")); ASSERT(res.IsEmpty());