El 22/01/2014 16:14, Arunski, Kevin escribió:

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Hello, I have been using a boost::interprocess::map stored in a managed mapped file segment, using the rb_best_fit allocation algorithm.

I have observed that starting in boost 1.55, I cannot interoperate with instances of this allocator that were created by programs compiled by boost 1.53.

It appears that the size of a boost::intrusive multiset object has changed, and this changes the representation of the rb_best_fit algorithm within the shared memory region.

Sorry about that. That must be a bug. Can you tell me please the sizes you get in both versions?

Sure. In code compiled with boost 1.53, this type: boost::interprocess::rbtree_best_fit,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