Re: [boost] boost::typeof, MSVC7.1 & 8.0, and precompiled headers

From: Bertrand Augereau (bertrand_at_[hidden])
Date: 2006-06-02 03:39:25

>This is the same problem that was worked around (by re-defining unnamed
>namespace) some time ago.  The main template is defined inside unnamed
>namespace, and this definition is put into PCH.  The template is specialized
>outside PCH.  Since this is done in another TU, the unnamed namespace is
>different, and the system can't match the template and the specialization.
>
>The workaround works for VC71 and, I am pretty sure it worked for VC80 beta.
>Unfortunately it doesn't seem to work for VC80 express :(
>
>I believe this is a bug in the compiler, since the use of PCH should be
>transparent.  The fact that PCH is created when another TU is compiled is an
>implementation detail, and should not prevent legal C++ code from being
>compiled (anybody knows if it's possible to report bugs to Microsoft?).
>
>  
>
http://lab.msdn.microsoft.com/productfeedback/ seems to be the place to 
do such a thing (never done it myself).
I can find no reference to this bug of bad unnamed namespace/PCH 
interaction yet, so maybe we are the first ones to notice such a thing.