[boost] [Boost-bugs] [ boost-Bugs-1359257 ] [variant] Bug in recursive_wrapper_fwd.hpp

From: SourceForge.net (noreply_at_[hidden])
Date: 2005-11-17 15:13:42

Bugs item #1359257, was opened at 2005-11-17 12:13
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: [variant] Bug in recursive_wrapper_fwd.hpp

Initial Comment:
I've been tracking down an preprocessor warning involving the  
redefinition of BOOST_TT_AUX_BOOL_TRAIT_DEF1.  It appears to me that 
variant/recursive_wrapper_fwd.hpp is misusing:

#include "boost/type_traits/detail/bool_trait_def.hpp"

The usual include pattern for this header is:

// should be the last #include
#include "boost/type_traits/detail/bool_trait_def.hpp"

...

#include "boost/type_traits/detail/bool_trait_undef.hpp"

But recursive_wrapper_fwd.hpp has:

#include "boost/type_traits/detail/bool_trait_def.hpp"
#include "boost/mpl/aux_/lambda_support.hpp"

...

and no include for bool_trait_undef.hpp.  This is causing a redefinition 
warning on Apple darwin for BOOST_TT_AUX_BOOL_TRAIT_DEF1.  
Changing recursive_wrapper_fwd.hpp to the usual use pattern of 
bool_trait_def.hpp as described above silences the warning.

Thanks,
Howard
hinnant_at_[hidden]

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