id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10353	Interprocess: rbtree_best_fit ABI change from 1.53 to 1.55	Terence.Darwen@…	Ion Gaztañaga	"I have an issue that seems to be identical to the issue discussed in this thread on the Boost List: http://lists.boost.org/boost-users/2014/01/81159.php

Basically, it seems the size of the Imultiset member in header_t of rbtree_best_fit.hpp has changed between Boost 1.53 and Boost 1.55.  As mentioned in the thread from the Boost List:

>> boost::interprocess::rbtree_best_fit<boost::interprocess::null_mutex_family,boost::interprocess::offset_ptr<void,__int64,unsigned __int64,0>,0> 
>> 
>> has size = 56 
>> member m_header.m_imultiset has size 32 
>> 
>> In code compiled with boost 1.55: 
>> 
>> the same type has size = 72 
>> member m_header.m_imultiset has size 48 
>
>
>Wow, that's too big. I think this is related with MSVC Empty Base 
>Implementation behaviour. I refactored those classes to avoid redundant 
>simple forwarding functions using inheritance and that broke this for 
>MSVC compilers. I should add some checks for 32 and 64 bit compilers to 
>guarantee the minimum size (16 bytes in 32 bit and 32 bytes in 64 bit). "	Bugs	new	To Be Determined	interprocess	Boost 1.55.0	Problem