Re: [boost] bug in type_traits/is_virtual_base_of ??

Subject: Re: [boost] bug in type_traits/is_virtual_base_of ??
From: John Maddock (john_at_[hidden])
Date: 2010-02-12 11:09:52

----- Original Message ----- 
From: "Daniel Larimer" <dlarimer_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Friday, February 12, 2010 2:06 PM
Subject: Re: [boost] bug in type_traits/is_virtual_base_of ??

>
> On Feb 12, 2010, at 6:53 AM, John Maddock wrote:
>
>>> What do you think?  Any potential problems / side effects?
>>
>> Unfortunately it breaks the existing tests with all the gcc versions I 
>> tried (win32 and Linux) :-(
>>
>
> Are we looking at the same code?  Have you been able to verify the padding 
> problem?

No I can't reproduce here, it seems to be somthing peculiar to 64-bit Mac 
systems I'm guessing.

>Do your tests at least confirm that my "patch" works for the test case I 
>outlined?    My patch seems to work (for my test case) for both Mac OS X 
>and debian linux.  gcc 4.2.1 and 4.3.2 respectively.
>
> What test case is it failing?

libs/type_traits/test/is_virtual_base_of_test.cpp

Cheers, John.