Re: [Boost-users] using floating_point_comparison.hpp inprecompiled header

From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2005-10-26 12:50:37

>I don't know if this is a bug or not, but using
> boost/test/floating_point_comparison.hpp in a precompiled header under
> VC71 on Windows yields multiply defined symbol errors for each file
> using it.  The workaround is to not use it in a precompiled header but
> only in the source files where it is needed.  Any ideas?
>
> Linking...
> stdafx.obj : error LNK2005: "struct
> check_is_close_t::boost::check_is_close_t
> boost::test_tools::`anonymous namespace'::check_is_close"
> (?check_is_close@?A0x5e8fa061_at_test_tools_at_boost@@3Ucheck_is_close_t_at_23@A)
> already defined in TestExample.obj
> ..\..\..\..\..\bin\Debug.NET\Test.exe : fatal error LNK1169: one or
> more multiply defined symbols found

I am not quite sure how PH machinery works but
boost::test_tools::`anonymous namespace'::check_is_close could not be 
multiply defined (see namespace)

Gennadiy