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From Michaël CATANZARITI <mca...@apache.org>
Subject Re: Questions about include/log4cxx/helpers/tchar.h
Date Mon, 05 Jul 2004 06:48:02 GMT
Hello Curt,

These macros are defined in log4cxx because they don't exist on Unix platforms.
However I think they should not appear at the log4cxx library interface, so the conflict will
not exist anymore.
It will be fixed in the next version.

Curt Arnold wrote:
> Including include/log4cxx/helpers/tchar.h before the Win32 platform's 
> tchar.h will result in compilation errors as the Win32 tchar.h's 
> overrides the definitions of W2A, A2W, USES_CONVERSION etc.  These 
> compilation errors can be avoided by forcing the Win32's tchar.h to be 
> loaded first, but at least in my case both tchar.h's were loaded 
> indirectly, it tooks some sleuthing to figure out where the Platform 
> tchar.h needed to be added.
> It doesn't appear that log4cxx itself uses some of the offending macros, 
> so I'm assuming that the they were provided as a convenience for library 
> users, however providing a second implementation of platform provided 
> macros could be confusing, especially since the log4cxx implementation 
> has length limitations that I don't believe exist in the Platform 
> provided implementation.  For example, the message size limitation 
> reported a few days ago, but be avoided by including the platform's tchar.h
> I haven't really dug into this issue yet, but it did surprise me and 
> maybe somebody could explain why the current state is a good thing.

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