convert BSTR to LPCWSTR

Question

Here is my need

BSTR l_strArgs;
LPCWSTR  sth;
//----
//---
OutputDebugStringW(sth);

How to convert BSTR to LPCWSTR ?

Is there any header only library that coverts any string type(microsoft) to LPCWSTR type ?

Answer 1

Just cover NULL scenario and you're good to go

BSTR l_strArgs;
LPCWSTR sth = strArgs ? strArgs : L"";

As you mentioned ATL in the tag, here is ATL-style one-liner:

OutputDebugString(CString(l_strArgs));

or, to make sure you are staying in Unicode domain:

OutputDebugStringW(CStringW(l_strArgs));