[Boost-bugs] [Boost C++ Libraries] #2515: [MSVC] ambiguous symbol type_info in boost/python tests

Subject: [Boost-bugs] [Boost C++ Libraries] #2515: [MSVC] ambiguous symbol type_info in boost/python tests
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-11-19 10:32:17

#2515: [MSVC] ambiguous symbol type_info in boost/python tests
-----------------------------------------------+----------------------------
 Reporter:  Farid Zaripov <faridz_at_[hidden]>  |       Owner:  dave   
     Type:  Bugs                               |      Status:  new    
Milestone:  Boost 1.38.0                       |   Component:  Python 
  Version:  Boost Development Trunk            |    Severity:  Problem
 Keywords:                                     |  
-----------------------------------------------+----------------------------
 The most of the boost/python tests are failed to compile on MSVC with
 Apache stdcxx library.

 [http://tinyurl.com/6hdez7 example 1]
 [http://tinyurl.com/5wywqb example 2]

 The reason is that <eh.h> header contains declaration of the:

 {{{
 int _is_exception_typeof(const type_info &, _EXCEPTION_POINTERS *) ;
 }}}

 <eh.h> header is included in libs/python/test/module_tail.cpp file. The
 module_tail.cpp is included in other pythons tests at the end of file
 after introducing boost::python symbols in global namespace.

 That tests are compiled successfully on MSVC without stdcxx due to <eh.h>
 implicitly included thus <exception> header (before "using namespace
 boost::python;" directive). But any of the stdcxx headers are not
 including the <eh.h> (see [http://svn.boost.org/trac/boost/ticket/1599

 ticket 1599]).

 The possible solution is explicitly include <eh.h> in every test, that
 includes module_tail.cpp.

 Another solution:

 {{{
 Index: module_tail.cpp
 ===================================================================
 --- module_tail.cpp     (revision 49830)
 +++ module_tail.cpp     (working copy)
 @@ -13,7 +13,9 @@
  # endif

  # ifdef _MSC_VER
 +#  define type_info ::type_info
  #  include <eh.h> // for _set_se_translator()
 +#  undef type_info
  #  pragma warning(push)
  #  pragma warning(disable:4297)
  #  pragma warning(disable:4535)
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2515>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.