Re: [boost] [patch] lambda bug with GCC debug mode

From: Jaakko Järvi (jarvi_at_[hidden])
Date: 2005-05-06 00:11:44

>

Committed. Thanks, Jon.

   Jaakko

> From: Jonathan Wakely <cow_at_[hidden]>
> Date: March 29, 2005 2:39:17 AM CST
> To: boost_at_[hidden]
> Subject: [boost] [patch] lambda bug with GCC debug mode
> Reply-To: boost_at_[hidden]
>
>
>
> The libstdc++ debug mode doesn't work with forward declarations of std
> templates (since when using the debug mode std::vector is really
> __gnu_debug_def::vector, visible in std due to GCC's "strong using"
> extension)
>
> Lambda's boost/lambda/detail/operator_return_type_traits.hpp seems to
> account for this, but only checks for GCC 3.4 not 4.0, causing the
> error shown here for GCC 4.x in debug mode (*):
> http://www.redi.uklinux.net/src/boost/status/cs-Linux- 
> links.html#lambda-constructor_tests-gcc-debug-mode
>
> The workaround on line 876 should be changed to account for GCC 4.x or
> alternatively, test for the debug mode explicitly.  The attached patch
> does the test explicitly and disables all forward decls of std  
> templates
> when _GLIBCXX_DEBUG is defined.  I don't know whether it's preferred
> to simply disable the forward decls for non-debug mode as well.
>
> jon
>