__FILE__ as WCHAR

[czerny]

Hallo,

is it possible to get __FILE__ as a WCHAR string?

[frankie]

_T(__FILE__)

[czerny]

I have to include <tchar.h> and define _UNICODE for this to work.

I had tryed to define

#define L(x) L##x

like _T is defined

but L(__FILE__) expands to L__FILE__

why?

[frankie]

The former answer was completely erroneus. My wrong... 

The problem is to make the preprocessor map the value as a string. for this you need a double expansion.
The following code should work

Code Select Expand

#define _L(x)  __L(x)
#define __L(x)  L##x

_L(__FILE__)


[czerny]

for this you need a double expansion.

Ahh! thats the point!

Thank you!