Re: TCHAR_traits compilation problem

Ulrich Eckhardt <>
Mon, 07 Jul 2008 12:37:20 +0200
Seduto wrote:

After installing the Visual C++ 2008 Feature Pack Release suddenly I am
not longer able to compile some program that use string header.

The error is TCHAR_traits is not defined.

I have compared string from vc 2008 and from vc 2005 and I have adding the
following declaration before importing string.

#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE)
#define TCHAR_traits std::char_traits
#define wTCHAR_t wchar_t

Irks, something is broken there. If you have symbols like wTCHAR_t or
TCHAR_traits, I guess that someone went berserk with search'n'replace,
replacing 'char' with 'TCHAR'. The above macros, evil as they are, only
(partially at least) undo the damage, but I doubt they are the correct way.

I'd be really interested where the damage came from, i.e. whether it was you
or the feature pack which broke this. Could you try to find out somehow?


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