Re: Compile issue on Linux x86_64

On Tue, Feb 16, 2010 at 09:59:20AM -0800, Thomas Nelson wrote:
> I just bumped myself up to 0.9 and updated my build scripts.
> 
> Item the first: 
> Good job.  I actually get warm fuzzies when a code base gets smaller; it
> means that people are putting thought and effort into keeping it clean and
> clean code is usually good code.  Makes me know that I made the right
> decision when I chose it.

Thank you.

> Item the second: 
> I'm getting no problems with the MSVC build (32bit) but on Linux (Fedora12
> x86_64, gcc 4.4.3-4) I'm getting a build error (exact error after note) but
> it looks like a conversion between void * and int.
> 
> Anyone else see/solve this yet?  I'm investigating now.

I believe this is an open issue on the C++ standard library:

  http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#811

A workaround would be to explicitly cast the null ptr to void*:

diff --git a/luabind/detail/object_rep.hpp b/luabind/detail/object_rep.hpp
index 243aae5..dafa653 100644
--- a/luabind/detail/object_rep.hpp
+++ b/luabind/detail/object_rep.hpp
@@ -55,7 +55,7 @@ namespace luabind { namespace detail
 		std::pair<void*, int> get_instance(class_id target) const
 		{
 			if (m_instance == 0)
-				return std::pair<void*, int>(0, -1);
+				return std::pair<void*, int>((void*)0, -1);
 			return m_instance->get(target);
 		}

-- 
Daniel Wallin
BoostPro Computing
http://www.boostpro.com

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