Geometry Boost List: [ggl] Re: problems with Boost Geometry Xcode compile?

Subject: [ggl] Re: problems with Boost Geometry Xcode compile?
From: Mark McCann (mmccann)
Date: 2010-03-09 16:21:23

Hi Stjepan, You figured it out exactly.  When I dumped the Xcode  
precompile for my file which includes <boost/geometry/geometry.hpp> I  
found:

template <typename Geometry>
inline void do { if ( __builtin_expect(!(), 0) ) { DebugAssert('?*?*',  
0, "Third Party Client" ": " "", 0, 0, "/usr/local/include/boost/ 
geometry/geometries/concepts/check.hpp", 181, (void*)0); } } while ( 0 )
{
     detail::checker<Geometry, boost::is_const<Geometry>::type::value>  
c;
     boost::ignore_unused_variable_warning(c);
}

Which looks like the result of this define macro in AssertMacros.h:

#if DEBUG_ASSERT_PRODUCTION_CODE
    #define check(assertion)
#else
    #define  
check(assertion)                                                   \
        
do 
                                                                       \
        
{                                                                       \
           if ( __builtin_expect(!(assertion),  
0) )                            \
            
{                                                                   \
                
DEBUG_ASSERT_MESSAGE(                                           \
                    
DEBUG_ASSERT_COMPONENT_NAME_STRING,                         \
                    
#assertion,                                                 \
                    
0,                                                          \
                    
0,                                                          \
                    
__FILE__,                                                   \
                    
__LINE__,                                                   \
                    
0);                                                         \
           }                                                                   \
       } while ( 0 )
#endif
and this definition for "check" in the Boost.Geometries check.h file:
template <typename Geometry>
inline void check()
{
     detail::checker<Geometry, boost::is_const<Geometry>::type::value>  
c;
     boost::ignore_unused_variable_warning(c);
}
Now that we've figured that out, do you have any idea at to what the  
fix would be?  My #undef hack seems to work ok, but this is an ugly  
hack.

  - Mark

On Mar 9, 2010, at 2:01 PM, Stjepan Rajko [via Boost Geometry] wrote:

> On Tue, Mar 9, 2010 at 12:58 PM, Mark McCann <[hidden email]> wrote:
>
> OK. So I figured out that there must be a macro in the wxWidgets  
> library for
> the symbol "check." ? I know this since writing:
> #ifdef check
> #undef check
> #endif
> #include <boost/geometry/geometry.hpp>
>
> fixed the issue. ? I don't think this in my code specifically  
> because I tried
> it in two different wx projects. ? Anybody know how to track down  
> exactly
> where a macro is defined? ? If this is a problem in wxWidgets, then  
> this
> might impact a lot of potential C++ projects that use Boost.Geometry.
>
> This could be an Apple macro from AssertMacros.h (which might in  
> turn get included by wxWidgets).
>
> Best,
>
> Stjepan
>
>
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