[boost] [interprocess] Container requirements for Boost.Interprocess allocators

From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2006-12-28 22:36:15

The boost inteprocess documentation [1] says that all objects must be 
constructed-destroyed via allocator::construct and allocator::destroy 
functions when using the interprocess allocators.

However, according to the draft of the next C++ Standard [2] 20.1.6/2, 
allocator::construct is strictly equivalent to placement new and 
allocator::destroy stricly equivalent to a call to the destructor, with 
the pointer type casted to void*.

Therefore why is such a requirement necessary?

[1] 
http://ice.prohosting.com/newfunk/boost/libs/interprocess/doc/html/interprocess/containers_explained.html
[2] http://open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1905.pdf