[boost] [shifted_ptr] "new shifted<T>"

From: Phil Bouchard (philippe_at_[hidden])
Date: 2008-06-05 12:04:55

Hi,

Firstly after defining my own sh::pool allocator new doors opened on their 
own and now I am able to replace the "new_sh<>()" function call with a much 
more neat C++ approach with "new shifted<>()".  For example instead of:

shifted_ptr<char[9]> u = new_sh<char[9]>();

Now we can write:
shifted_ptr<char[9]> u = new shifted<char[9]>();

This will allows us defining STL container allocators more easily because of 
the distinct steps the constructor and allocator are called; new_sh<>() was 
mixing them altogether.

Secondly I was able to drastically clean up "class shifted<>" (was: owned<>) 
by unifying the construction of the member object with the construction of 
the class itself.  This was necessary to use "new shifted<>()" adequately.

Last but not least the library now takes advantage of the 
fast_pool_allocator for objects such as "struct set" and 
"numeric::interval<int>".  FYI I am using "numeric::interval<int>" instead 
of "numeric::interval<void *>" because of a compilation failure with the 
latter.  I am casting the pointers to an "int" meanwhile because there is no 
lost of information by doing so according to the standards.

The files are both on Vault and the Sandbox and is nearly the official 
release.  Documentation will follow soon for those who got no clue what I'm 
talking about:
http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename=shifted_ptr.zip&directory=Memory

Thanks,
-Phil